2017

PUBLICATIONS 2017

Johannes Feldmann, Matthias Stegmaier, Nico Gruhler, Carlos Rios, Harish Bhaskaran, C David Wright and Wolfram H.P Pernice,“Computing with light using a chip-scale all-optical abacus”, Nature Communications, Vol 8, 1256 (2017), DOI: 10.1038/s41467-017-01506-3

Zengguang Cheng, Carlos Rios, Wolfram HP Pernice, C David Wright and Harish Bhaskaran, „On-chip photonic synapse”,Science Advances, Vol 3, No. 9, e1700160, DOI: 10.1126/sciadv.1700160

T Cosnahan, A A R Watt, H. E. Assender, “Modelling of a Vacuum Metallization Patterning Method for Organic Electronics”,Surf Coating and Technology, 2017, DOI: 10.1016/j.surfcoat.2017.09.058

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, Harish Bhaskaran 2 & C. David Wright Benjamin Francis Porter, Nhlakanipho Mkhize and Harish Bhaskaran,“Nanoparticle assembly enabled by EHD-printed monolayers”,Nature Microsystems and Nanoengineering, 2, 17054 (2017), DOI: 10.1038/micronano.2017.54

Yat-Yin Au, Harish Bhaskaran & C. David Wright, „Phase-change devices for simultaneous optical-electrical applications”,Scientific Reports, 2017, 7:9688, DOI:10.1038/s41598-017-10425-8

Syed Ghazi Sarwat, Pascal Gehring, Gerardo Rodriguez Hernandez, Jamie H.Warner, G.Andrew D. Briggs, Jan A. Mol, Harish Bhaskaran, ”Scaling Limit of Graphene Nanoelectrodes”,Nano Letters, 2017, 17 (6), pp3688-3693, DOI: 10.1021/acs.nanolett.7b00909

G. Rodriguez-Hernandez, P. Hosseini, C. Rios, C. D. Wright, H. Bhaskaran, “Mixed-Mode Electro-Optical Operation of Ge2Sb2Te5 Nanoscale Crossbar Devices”,Advanced Electronic Materials, 2017, Vol, 17000079, DOI: 10.1002/aelm.201700079

Y.Sheng, X. Wang, K. Fujisawa, S. Ying, AL. Elias, Z. Lin, W. Xu, Y. Zhou, AM. Korsunsky, H.Bhaskaran, M. Terrones, JH. Warner, “Photoluminescence Segmentation within Individual Hexagonal Monolayer Tungsten Disulfide Domains Grown by Chemical Vapor Deposition”, ACS Appl Mater Interfaces, 2017, 9 (17), pp 15005–15014, DOI: 10.1021/acsami.6b16287

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V. Karthik Nagareddy, Matthew D. Barnes, Federico Zipoli, Khue T. Lai, Arseny M. Alexeev, Monica Felicia Craciun, and C. David Wright“Multilevel Ultrafast Flexible Nanoscale Nonvolatile Hybrid Graphene Oxide–Titanium Oxide Memories”,ACS Nano, 2017, 11 (3), pp 3010–3021, DOI: 10.1021/acsnano.6b08668

Morgan, Katrina, Zheng, Xu, Ho, Ying-Lung, Taverne, Mike P.C., Chen, Lifeng, Huang, Chung-Che, Zeimpekis, Ioannis, Aspiotis, Nikos K., Rarity, John G. and Hewak, Daniel (2016) 3D structures integrated with MoS2 At TMD-UK, Bath, United Kingdom. 01 - 02 Sep 2016. 2 pp.

Orsi Gordo, V., Covre, F.S., Galeti, H.V.A., Galvão Gobato, Y., Henini, M., Huang, C.C. and Hewak, D.W. (2017) Optical properties of large area WS2 grown by chemical vapor deposition At The winter school and workshop: New Frontiers in 2D materials: Approaches & Applications, France. 15 - 20 Jan 2017. 1 pp.

Huang, Chung-Che, Aspiotis, Nikolaos, Cui, Qingsong, Alzaidy, Ghadah, Weatherby, Ed, Craig, Chris, Morgan, Katrina, Zeimpekis, Ioannisand Hewak, Daniel (2017) Chemical vapor deposition and Van der Waals epitaxy for wafer-scale emerging 2D transition metal di-chalcogenides At 2nd International Conference on Physics of 2D Crystals (ICP2C2), Viet Nam. 25 - 30 Apr 2017.

Morgan, Katrina A., Craig, Christopher, Ravagli, Andrea, Weatherby, Ed, Aghajani, Armen and Hewak, Daniel W. (2017) Spatially controlled doping of silver in chalcogenide glass by thermal, photo and electron beam effects At 2017 Conference on lasers and electro-optics and European Quantum Electronics conference, Munich, Germany. 25 - 29 Jun 2017. 1 pp.

Aspiotis, Nikolaos, Zeimpekis, Ioannis, Morgan, Katrina, Alzaidy, Ghadah, Abdulrahman, Huang, Chung-Che and Hewak, Daniel (2016) Large scale CVD 2D heterostructures At TMD-UK, Bath, United Kingdom. 01 - 02 Sep 2016.

Morgan, Katrina, Craig, Christopher, Ravagli, Andrea, Weatherby, Ed, Aghajani, Armen and Hewak, Daniel (2017) Spatially controlled doping of silver in chalcogenide glass by thermal, photo and electron beam effects At 2017 Conference on lasers and electro-optics and European Quantum Electronics conference, Munich, Germany. 25 - 29 Jun 2017.

Huang, Chung-Che, Aspiotis, Nikolaos, Cui, Qingsong, Alzaidy, Ghadah, Abdulrahman, Weatherby, Edwin, Craig, Christopher, Morgan, Katrina, Zeimpekis, Ioannis and Hewak, Daniel (2017) Evolution in emerging 2D functional chalcogenides with CVD and Van der Waals Epitaxy At EMN 2D Materials, Lyon, France. 08 - 12 Aug 2017.Alzaidy, Ghadah, Abdulrahman, Craig, Christopher, Hewak, Daniel, Huang, Chung-Che, Zeimpekis, Ioannis, Morgan, Katrina and Weatherby, Edwin (2017) Phase engineering of tin sulphide grown by atmospheric pressure chemical vapour deposition at ambient temperature AtCLEO/Europe - EQEC 2017, Munich, Germany. 25 - 29 Jun 2017.

Xiaochen Wang, Thomas N. Hooper, Amit Kumar, Isobel K. Priest, Yuewen Sheng, Thomas O. M. Samuels, Shanshan Wang, Alex W. Robertson, Mercè Pacios, Harish Bhaskaran, Andrew S. Weller, Jamie H. Warner,“Oligomeric aminoborane precursors for the chemical vapour deposition growth of few-layer hexagonal boron nitride”, CrystEngComm, 2017, 19, pp 285-294, DOI: 10.1039/C6CE02006B

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Matthias Stegmaier, Carlos Ríos, Harish Bhaskaran, C. David Wright, Wolfram H. P. Pernice,“Nonvolatile All-Optical 1 × 2 Switch for Chipscale Photonic Networks”, Advanced Optical Materials, 2017, 5 (1), 1600346, DOI: 10.1002/adom.201600346

CONFERENCE PROCEEDINGS 2017

Electric field induced breakdown: Monolayer behaviour under duress

Harish Bhaskaran (Keynote speaker)“Additive Nanomanufacturing Workflows: EHD Printing, Self-Assembly and Metrology”,ChinaNANO 2017, 7th International Conference on Nanoscience and Technology, August 29-31, 2017, Beijing, Chinahttp://www.chinanano.org/index.htm

Harish Bhaskaran (Oral Invited)“On-chip phase-change photonic memory and computing”,SPIE Nanoscience + Engineering, 6 - 10 August 2017, San Diego, California United States Meeting,http://spie.org/op

Carlos Rios, Zengguang Cheng, Matthias Stegmaier, C. David Wright, Wolfram H.P. Pernice, Harish Bhaskaran,“Phase-change materials for integrated photonics“,19th Photonics North Conference, June 6-8 2017, Ottawa, Canada http://www.photonicsnorth.com/en/sessions

WAFT partner:Arseny Alexeev,“Phase-Change and Carbon-Based Materials: from Resistive Switching to Optoelectronic Applications”,GW4 Nanofabrication Workshop, 10 July 2017, Bath, UK

WAFT partner:Arseny Alexeev,“Tunable Dielectric Metadevices Enabled by Phase-Change Materials”,Material Research Society Spring Meeting & Exhibit, 17-21 April 2017, Phoenix, AZ, USAhttps://www.mrs.org/spring2017

WAFT partner:Hazel E. Assender, (INVITED)“Roll-to-roll processing of flexible electronics: transistors, circuits and devices”,TECHCON 2017, 60th Annual Technical Conference, April 29-May 4. 2017, Providence, Rhode Islandhttps://asm.confex.com/asm/svc2017/webprogram/Paper42657.html

WAFT partner:Krishnan Murugappan, Ben Armitage, Merel Lefferts, Tabitha Jones and Martin R. Castell,“Electrochemical Bridging of Conducting Polymers at the Percolation Threshold for Chemiresistors”,International Conference on Electrochemical Sensors 2017 June 11-16, Mátrafüred, Hungaryhttp://www.matrafured-conference.bme.hu/

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WAFT partner:Krishnan Murugappan, Merel Lefferts, Ben Armitage, Tabitha Jones and Martin R. Castell,“Electrochemical Bridging of Conducting Polymers between Gold Nanoparticles at the Percolation Threshold for Chemiresistors”,Nanosurfaces 2017 - Nano-enhanced surface technologies, 25 May 2017, London, UKhttps://www.iom3online.org/iom/frontend/reg/tOtherPage.csp?pageID=352720&ef_sel_menu=2717&eventID=705&eventID=705

Ben Broughton, Lokeshwar Bandhu, Clement Talagrand, Sergio Garcia-Castillo, Mengyang Yang, Harish Bhaskaran and Peiman Hosseini,“Solid-State Reflective Displays (SRD®) Utilizing Ultrathin Phase-Change Materials”,Display Week, May 21–26, 2017, Los Angeleshttp://displayweek.org/2017/Program/SpecialTopics.aspx#463573-display-materials-and-processes-

Harish Bhaskaran, (INVITED)“Phase Change Optoelectronics”TechConnect World Innovation & National Innovation Summit (15-17 May 2017), Maryland, USAhttp://www.techconnectworld.com/World2017/monday.html

Hazel E. Assender,“Roll-to-roll manufacture of all-evaporated organic circuits for flexible electronics”,Printed and Flexible Electronics Congress 2017, 21-22 February, London, UKhttp://www.global-engage.com/event/printed-flexible-electronics/

Zengguang Cheng, Carlos Rios, Harish Bhaskaran"Integrated Photonics for Neuromorphic Computing",SJTU Future Information Technology International Forum for Yong Scholars (2nd SIFYS-2017), 13-14 April, Shanghai, Chinahttp://www.seiee.sjtu.edu.cn/forum/index.action?forumid=1

TUTORIALS 2017

Training tutorial for Exeter CDT students on dielectric metamaterials in the framework of EPSRC IAA award (organised by Arseny Alexeev, delivered by the external partner co-investigator).

POSTERS 2017

28th Micromechanics and Microsystems Europe Workshop, 23 – 25 August, Uppsala, SwedenNhlakanipho Mkhize & Ghazi Syed

43rd International Conference on Micro and Nanoengineering, 18 – 22 September, Braga, PortugalNhlakanipho Mkhize & Ghazi Syed

WAFT Annual Meeting: 5-6 October 2017, Wolfson College, Oxford1. Krishnan Murugappan: Conducting Polymer Networks at the Percolation Threshold for

Chemiresistors on Flexible Substrates

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2. Nathan Youngblood: Dynamic Smart Windows Using Phase Change Materials3. Carlos Rios Ocampo: Phase-change Photonics and Optoelectronics4. Benjamin Porter: Additive Nanomanufacturing 5. Zengguang Cheng: On-chip photonic synapse6. Madhav Kumar: Nanoelectromechanical Systems(NEMS)7. Nhlakanipho Mkhize: Enhanced printing resolution on flexible substrates with self-assembled

monolayer surface modification 8. Qiang He: Dynamically tunable color filters based on Phase change materials9. Thomas Cosnahan: Depositing patterns of aluminium using a vacuum roll-to-roll technique10. Kai Zhang: Roll-to-roll manufacture of OTFT sensors based on PVDF11. Yat-Yin Au: Infrared Phase-Change Metadevices with in-situ Switching12. Santiago Garcia-Cuevas Carillo: Towards A Phase-Change Metamaterial CMY Subtractive

Display13. Carlota Ruiz de Galarreta: Phase-Change Reflectarrays14. Moritz Riede and Sameer Vajjala Kesava: In-situ X-ray and Optical Characterisation of

Vacuum-Deposited Organic Semiconductors15. Hazel E. Assender: High-throughput manufacture of flexible electronics16. Hazel E. Assender: The role of nanodefects in oxide-coated polymer gas barrier layers17. Simon Henley: M-Solv Ltd

AWARDS, RECOGNITIONS 2017

RESEARCH PRIZEMEDALAWARDED HONORARY MEMBERSHIP OR FELLOWSHIP OF A LEARNED SOCIETYAPPOINTED AS AN EDITOR/ADVISOR TO A JOURNAL OR BOOK SERIESPOSTER/ABSTRACT PRIZE

AWARD

Worshipful Company of Ironmongers Prize for Best Part II talk (May 2017): Tabitha Jones for her talk:"Conducting polymer percolation networks for gas sensing"

Hetherington Prize Winner (March 2017) Nhlakanipho Mkhize for his talk:“High resolution additive manufacturing using direct writing methodologies"

MEDALJohn Yarwood Memorial Medal (2016) was awarded to Martin Castell for meritorious contributions to surface science (November 2016)

PRESTIGIOUS/HONORARY/ADVISORY POSITION TO AN EXTERNAL BODYMoritz Riede was invited to co-chair the Global Young Academy (December 2016)

ATTRACTED VISITING STAFF OR USER TO YOUR RESEARCH GROUPInvited speakers for Special Seminars at the University of Oxford Department of Materials:

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Prof Phillip Stanley-Marbell, Assistant Professor (UL) and Head of Physical Computation Laboratory, Division of Electrical Engineering, Department of Engineering University of CambridgeTitle of the talk: Efficient Sensor-Driven Systems for the Physical WorldDate of the special seminar: 9 May 2017

Leon AbelmannTitle of the talk:Date of the special seminar: 20 March 2017

Prof. Dongsheng Liu, Department of Chemistry, Tsinghua University, Beijing, China, Title of the talk: Supramolecular DNA HydrogelsDate of the special seminar: 26/09/2016

Academic Visitors at the Advanced Nanoscale Engineering Group:Matthew C. Levy, Noble Artificial Intelligence Limited, May 2017-May 2018Andreas Hessel, RWTH Aachen University, Germany, May 2017-July 2017

Recognised Student:Qiang He, Huazhong University of Science and Technology, February 2017 – January 2018Andrew Katumba, University of Gent, October 2017- March 2018

Visiting Student:Emanuele Gemo, University of Exeter, March 2017

NIHR SENIOR INVESTIGATOR/CLINICAL EXCELLENCE AWARDNATIONAL HONOUR, E.G. ORDER OF CHIVALRY, OBEPRESTIGIOUS/HONORARY/ADVISORY POSITION TO AN EXTERNAL BODYPERSONAL INVITATION AS KEYNOTE OR OTHER NAMED SPEAKER TO A CONFERENCEHONORARY DEGREE

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2016

PUBLICATIONS 2016

S. Garcia-Cuevas Carrillo, GR. Nash, H. Hayat, MJ. Cryan, M. Lemm, H. Bhaskaran, CD. Wright, “Design of practicable phase-change metadevices for near-infrared absorber and modulator applications”, Optics Express, 2016, 24 (12), pp 13563-13573, DOI: 10.1364/OE.24.013563

Youmin Rong, Yuewen Sheng, Mercè Pacios, Xiaochen Wang, Zhengyu He, Harish Bhaskaran, and Jamie H. Warner “Electroluminescence Dynamics across Grain Boundary Regions of Monolayer Tungsten Disulfide”,ACS Nano, 2016, 10 (1), pp 1093-1100, DOI:10.1021/acsnano.5b06408

WAFT partner:Tobias J. Octon, V. Karthik Nagareddy, Saverio Russo, Monica F. Craciun, C. David Wright,“Fast High-Responsivity Few-Layer MoTe2 Photodetectors”,Advanced Optical Materials, 2016, DOI: 10.1002/adom.201600290

WAFT partner:Kermadi, S., Sali, S., Ait Ameur, F., Zougar, L., Boumaour, M., Toumiat, A., Melnik, N.N., Hewak, D.W. and Duta, Anca (2015), “Effect of copper content and sulfurization process on optical, structural and electrical properties of ultrasonic spray pyrolysed Cu2ZnSnS4 thin films”,Materials Chemistry and Physics, 2016, 169, pp. 96-104, DOI: 10.1016/j.matchemphys.2015.11.035

C. Rios, P. Hosseini, RA. Taylor, H. Bhaskaran, “Color Depth Modulation and Resolution in Phase-Change Material Nanodisplays”, Advanced Materials, 2016, DOI: 10.1002/adma.201506238

M. Stegmaier, C. Rios, H. Bhaskaran and WHP. Pernice, “Thermo-optical Effect in Phase-Change Nanophotonics”, ACS Photonics, 2016, 3(5), pp 828-835, DOI: 10.1021/acsphotonics.6b00032

H. Tan, Y. Fan, B Porter, CS Lau, Y Zhou, Z. He, S. Wang, H. Bhaskaran and JH Warner, “Doping Graphene Transistors Using Vertical Stacked Monolayer WS2 Heterostructures Grown by Chemical Vapor Deposition”, ACS Applied Materials & Interfaces, 8 (3), pp 1644–1652, (2016), DOI: 10.1021/acsami.5b08295

S. Wang, M. Pacios, H. Bhaskaran and JH Warner, “ Substrate control for larger area continuous films on monolayer MoS 2 by atmospheric pressure chemical vapor deposition ” , Nanotechnology, 2016, 27(8), pp 1-8, DOI: 10.1088/0957-4484/27/8/085604

M. Pacios, P. Hosseini, Y. Fan, Z. He, O. Krause, J. Hutchison, JH. Warner and H. Bhaskaran, “Direct manufacturing of ultrathin graphite on three-dimensional nanoscale features”, Scientific Reports, 2016, 6: 22700, DOI: 10.1038/srep22700

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CONFERENCE PROCEEDINGS 2016

P. Hosseini, C. Rios, H. Bhaskaran, “Reflective Displays - Are Phase Change Materials the New Modulator?”23rd International Display Workshops in conjunction with Asia Display 2016 (IDW/AD '16), Fukuoka, Japan, December 7-9, 2016, FMC6 – 1, invited talk, http://www.idw.or.jp/IDW16FP.pdf

Syed Ghazi Sarwat, Jan Mol, Harish Bhaskaran,„Graphene Nano-gaps: Performance Limit and Phase Change Memory”,IUMRS- International Union of Materials Research Society, Bangalore, India, 11-15 Dec Syed Ghazi Sarwat, Jan Mol, Harish Bhaskaran,„Ultimate Scaling Limit of Nanoscale Devices: Graphene Nano-gaps”, poster, ISRS- International Symposium of Research Scholars, Chennai, India, 21-23 Dec,

B.F. Porter,“Additive Nanomanufacturing”Wearable and Flexible Technologies (WAFT) Scientific Meeting, Somerville College, Oxford, 20 Oct 2016.http://nanoeng.materials.ox.ac.uk/Advanced_Nanoscale_Engineering_at_Oxford/News.html

H. Bhaskaran,“Photonic memories based on phase change materials”E-MRS Fall Meeting, Warsaw, Poland, 19-21 Sept 2016, invited talkhttp://www.european-mrs.com/integration-novel-materials-and-devices-silicon-future-technologies-emrs

Lefferts, M.; Wu, C.; Murugappan, K.; Visser, S.; Coombes, S.; Hickey, P.; Brookes, M.; Watt, A.; Castell, M., “Percolation Networks of Conductive Polymers for High Sensitivity Vapour Sensing of Explosive Materials”, 16th International Meeting on Chemical Sensors, 10-13 June 2016, Jeju Island, Koreahttp://www.imcs2016.org/program/index4.php

Peiman Hosseini, Carlos Rios and Harish Bhaskaran,“Novel Displays, Smart Windows and Other Optoelectronics Using Phase Change Materials”,MRS Spring Meeting, Phoenix, Arizona, 28 March-1 April 2016, MD4.10.01Highlighted in MRS’s summary of the most significant Materials research being carried out across the world in 2016, http://materials.typepad.com/mrs_meeting_scene/2016/04/md4-phase-change-materials-and-applications.htmlhttp://epub.knepperpress.com/publication/?i=292778

C. Rios, M. Stegmaier, CD Wright, WHP. Pernice, and H. Bhaskaran,„Multi-level storage in non-volatile phase-change nanophotonic memories”IEEE Photonics Conference (IPC), 2016, Oct. 2-6, Hawaii, USA, DOI: 10.1109/IPCon.2016.7831160https://ieeexplore.ieee.org/document/7831160/

Sameer Vajjala Kesava, Moritz Riede’

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"In situ monitoring of key thin film parameters of vacuum deposited organic photovoltaic devices",7th International Conference on Spectroscopic Ellipsometry, 06 - 10 June 2016, Berlinhttps://www.isas.de/en/calendar/events/icse-7

C. Ríos, M. Stegmaier, P. Hosseini, C.D. Wright, W.H.P Pernice, and H. Bhaskaran.Integrated All-photonic Data Storage Enabled by Phase-change Materials.In 5th International Conference Smart and Multifunctional Materials, Structures and Systems, CIMTEC 2016, Abstract K-2-L10, 5-9 June 2016, Perugia, Italy.http://2016.cimtec-congress.org/abstracts_symposium_k

Nhlakanipho C. Mkhize, Benjamin F. Porter, Madhav Kumar, Ritesh Agarwal and Harish Bhaskaran, “Micro-contact printing in phase change material nanowire device fabrication” (Poster),13th International Workshop on Nanomechanical Sensing, Delft, The Netherlands, 22 – 24 June, 2016

M. Kumar, H. Bhaskaran, B. Choubey, “Nonlinearity in graphene-based nanoresonators”,Proc. of the 13th International Workshop on Nanomechanical Sensing NMC 2016, Delft, The Netherlands, 22 – 24 June, 2016.

PRESENTATIONS 2016

WAFT Scientific Meeting 20 October 2016, Oxford, Somerville College

Research Presentations:

Harish Bhaskaran,“WAFT Annual Meeting 2016”

Ben Porter, “Additive Nanomanufacturing”

Kishnan Murungappan,“Sensor”

Arseny Alexeev, L. Saharan, G. Hrkac, D. Wright,“Modelling Flexible and Wearable Electronics”

Research Reviews:

John Sandford O’Neill & Kylee Wu,“Wearable and Flexible Technologies”

Nikos Aspiotis,“2D Materials Growth”

Industrial Cases:

Matt Brookes,

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Defence Science and Tech Lab

Ben Broughton Bodle Technologies Ltd.

POSTERS 2016

WAFT Scientific Meeting 20 October 2016 – Poster Session

Sameer Vajjala Kesava, Moritz Riede,“In situ monitoring of multilayer deposition for organic solar cells”

Merel Lefferts, Krishnan Murugappan, Ben Armitage, Tabitha Jones, and Martin Castell,“Ultra-Sensitive Molecular Detection of Explosives”

Ghadah Alzaidy

Santiago García-Cuevas Carrillo, C. David Wright, Peiman Hosseini and Harish Bhaskaran,“Non-Volatile Optoelectronic Phase-Change Meta-Displays”

Zengguang Cheng, Carlos Ríos, Takashi Lawson, Harish Bhaskaran, “On-chip optical synapse based on phase-change materials”

Gerardo Rodriguez-Hernandez, Peiman Hosseini and Harish Bhaskaran“Study of Ge2Sb2Te5 properties for opto-electronic applications”

Madhav Kumar and Harish Bhaskaran, “Self-sensing Graphene-based Nanoelectromechanical Systems (NEMS)”

Nhlakanipho Mkhize, Benjamin Porter, Harish Bhaskaran, “Self Assembly Monolayer Patterning using Electrohydrodynamic Jet Printing”

Ghazi Sarwat, Jan Mol, Harish Bhaskaran“Ultimate Limit of Nanoscale Devices: Graphene Nano-gaps”

Karthik Nagareddy

Carlota Ruiz de Galarreta1, C.D. Wright, J. Bertolotti,“A Phase-Change Metamaterial-Based Dynamic Beam Steering Device”

Thomas Cosnahan, Andrew Watt & Hazel Assender,“Depositing patterns of aluminium using a vacuum roll-to-roll technique”

OTHER 2016

Harish Bhaskaran, Peiman Hosseini,

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“Germanium”, BBC Radio, Elements, 16 March, radio interviewhttp://www.bbc.co.uk/programmes/p03mrtq0

AWARDS, RECOGNITIONS 2016

POSTER/ABSTRACT PRIZE

Gerardo Rodriguez Hernandez“Study of Ge2Sb2Te5 for opto-electronic applications”Second place award for Best Student Poster at the Electronics Materials and Applications (EMA) Conference in Orlando, 2016http://ceramics.org/meetings/electronic-materials-and-applications-2016

Gerardo Rodriguez Hernandez DPhil student in Prof Harish Bhaskaran's Advanced Nanoscale Engineering Group won the second place award for Best Student Poster at the Electronics Materials and Applications (EMA) 2016 Conference in Orlando, Florida, US (organized by the American Ceramic Society). The title of Gerardo’s award-winning poster was: “Study of Ge2Sb2Te5 for opto-electronic applications”

STUDENT TRAVEL GRANT AWARD

Carlos Ríos was awarded one of the 10 student travel grants to attend the IEEE Photonics Conference (IPC), which took place in Waikoloa Village, Hawaii, USA, in October 2-6, 2016. Carlos gave a talk on the conference paper titled: Multi-level storage in non-volatile phase-change nanophotonic memories

Freddie Onslow wins the Worship Company of Ironmongers Award for the Best Part II talk at Oxford Materials. Freddie was invited to present her talk at the Court at Ironmongers Hall in London on 9 June 2016.

Ben Porter wins the local heat (Oxford) in the Young Lecturer’s Competition.

2015

PUBLICATIONS 2015

5. from WAFT Partners Wang L, Wright CD, Aziz MM, Ying J, Yang GW,„A physics-based three dimensional model for write and read performances of phase-change probe memory”,Journal of Nanoscience and Nanotechnology, (2015), 15 (4), pp 2785-2789, DOI:10.1166/jnn.2015.9220

4. from WAFT Partners Merel J. Lefferts and Martin R. Castell, "Vapour sensing of explosive materials."

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Analytical Methods, 2015, 7 (21), pp 9005-9017, DOI: 10.1039/c5ay02262b

3. from WAFT Partners ROSIE A. COBLEY, (Member, IEEE), C. D. WRIGHT, (Member, IEEE), AND JORGE A. VÁZQUEZ DIOSDADO, "A Model for Multilevel Phase-Change Memories Incorporating Resistance Drift Effects", IEEE Journal of the Electron Devices Society, 2015, 3 (1), pp 15-23, DOI: 10.1109/JEDS.2014.2357577

2. from WAFT Partners Darren C. J. Neo, Samuel D. Stranks, Giles E. Eperon, Henry J. Snaith, Hazel E. Assender and Andrew A. R. Watt, "Quantum funneling in blended multi-band gap core/shell colloidal quantum dot solar cells", Applied Physics Letters, 2015, 107 (10), 103902, DOI: 10.1063/1.4930144

1. from WAFT Partners Y.G. Fedorenkoa, 1, M.A. Hughesa, J.L. Colauxa, C. Jeynesa, R.M. Gwilliama, K. Homewooda, B. Gholipourb, J. Yaob, D.W. Hewak, T.-H. Leec, S.R. Elliottc, R.J. Currya"Electrical properties of Bi-implanted amorphous chalcogenide films", Thin Solid Films, 2015, 589, pp 369-375, DOI: 10.1016/j.tsf.2015.05.036

Add1. from WAFT Partners Natasha E. Hjerrild, Darren C. J. Neo, Assia Kasdi, Hazel E. Assender, Jamie H. Warner, and Andrew A. R. Watt*"Transfer Printed Silver Nanowire Transparent Conductors for PbS–ZnO Heterojunction Quantum Dot Solar Cells " , ACS Appl. Mater. Interfaces, 2015, 7 (12), pp 6417–6421, DOI: 10.1021/am505646d

8.C. Rios, M. Stegmeier, P. Hosseini, D. Wang, T. Scherer, CD Wright, H. Bhaskaran and WHP Pernice, “Integrated all-photonic non-volatile multi-level memory”, Nature Photonics, 2015, 9 (11), pp 725–732, DOI: 10.1038/nphoton.2015.182

7. Y. Rong, Y. Sheng, M. Pacios, X. Wang, Z. He, H. Bhaskaran and JH Warner, “Electroluminescence Dynamics across Grain Boundary Regions of Monolayer Tungsten Disulfide” ACS Nano (2016), 10 (1), pp 1093–1100, DOI: 10.1021/acsnano.5b06408,

6.P. Hosseini, A. Sebastian, N. Papandreau, CD. Wright and H. Bhaskaran, “Accumulation-based computing using phase change memories and FET access devices”, IEEE Electron Device Letters, 2015, 36 (9), pp 975-977, DOI: 10.1109/LED.2015.2457243

5.H. Nazeer, H. Bhaskaran, LA Wondering and L. Abelmann, “Young’s modulus and residual stress of GeSbTe phase-change thin films”, Thin Solid Films, 2015, Vol 592, Part A, pp 69-75, DOI: 10.1016/j.tsf.2015.08.049

4.P. Hosseini and H. Bhaskaran “Colour performance and stack optimisation in phase change material based nano-displays”,

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SPIE 9520, 2015, Integrated Photonics: Materials, Devices, and Applications III, DOI: 10.1117/12.2178658

3. P. Hosseini, M. Kumar and H. Bhaskaran,“2-D materials as a functional platform for phase change tunable NEMS ” IEEE Access, 2015, Vol 3, pp 737-742, DOI: 10.1109/ACCESS.2015.2439572

2. Youmin Rong, Kuang He, Mercè Pacios, Alex W Robertso, Harish Bhaskaran, Jamie H Warner, “Controlled Preferential Oxidation of Grain Boundaries in Monolayer Tungsten Disulfide for Direct Optical Imaging” ACS Nano, 2015, 9 (4), pp 3695-3703, DOI:10.1021/acsnano.5b00852

1. M. Kumar and H. Bhaskaran,“Ultrasensitive Room-Temperature Piezoresistive Transduction in Graphene-based Nanoelectromechanical Systems”, Nano Letters, 2015, 15 (4), pp 2562–2567, DOI: 10.1021/acs.nanolett.5b00129

CONFERENCE PROCEEDINGS 2015

Matthias Stegmaier, Carlos Rios, Peiman Hosseini, C. David Wright, Harish Bhaskaran and Wolfram H.P. Pernice, “All-photonic nonvolatile memory cells using phase-change materials”, IEEE Photonics Conference (IPC), 4-8 Oct 2015, pp 4484-485, DOI:10.1109/IPCon.2015.7323552

Harish Bhaskaran,“An optoelectronic framework enabled by low-dimensional phase change films”,European\Phase Change Symposium 2015, Amsterdam, 6th - 8th Sep 2015, invited paper/talkhttp://www.epcos.org/e-pcos-2015-1

Hasan H, Kohary KI, Wright C.D,„A theoretical study of scaling behaviour of mushroom PCRAM devices using the Gillespie Cellular Automata Approach.”European\Phase Change and Ovonics Symposium 2015, Amsterdam, 6th - 8th Sep 2015,https://ore.exeter.ac.uk/repository/handle/10871/20236

Alex Powell, Andrew Watt, Hazel Assender, and Jason M. Smith, “Subwavelength Sensing Elements from Film-Coupled Silver Nanocubes”OSA Technical Digest (online), 2015, paper FTu4E.6, DOI: 10.1364/CLEO_QELS.2015.FTu4E.6

Benjamin F. Porter and Harish Bhaskaran, “Controlled electrophoretic single-nanoparticle placement via interdigitated electrodes” Electronic Materials and Applications EMA 2015, Jan 21st-23rd, Orlando, United States of America, Link to abstracts: http://ceramics.org/2015/01

Madhav Kumar and Harish Bhaskaran, “Piezoresistive transduction of graphene-based nanoelectromechanical systems”, mne2015.orgLink to abstracts: http://mne2015.org/wp-content/uploads/2015/09/pdf/Thu-C1-c8.pdf

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C. David Wright, Yat-Yin Au, Harish Bhaskaran, Gerardo Rodriguez-Hernandez, Peiman Hosseini, Carlos Rios, Ritesh Agarwal and Wolfram H P Pernice. “New mixed-mode optoelectronic applications possibilities using phase-change materials and devices”, MRS Spring Meeting, April 6th-10th, San Francisco, USA

Carlos Ríos, Peiman Hosseini and Harish Bhaskaran, “Growth and nucleation dominated phase-change materials for nano-optoelectronics and display technology”,International Nanotechnology Conference on Cooperation and Communication INC11, May 11th-13th, Fukuoka, Japan.

Carlos Rios, Matthias Stegmaier, Peiman Hosseini, C. David Wright, Harish Bhaskaran and Wolfram H.P. Pernice. “Phase-change chalcogenide photonics”, Glass reflections conference, September 7th-9th, Cambridge, UK.

Peiman Hosseini, Carlos Ríos, C David Wright and Harish Bhaskaran,“Phase change materials in Light modulating applications beyond data storage”, Symposium E\PCOS 2015, Sept 9th-11th, Amsterdam, Netherlands. Invited Paper without DOI

Matthias Stegmaier, Carlos Rios, Peiman Hosseini, C. David Wright, Harish Bhaskaran and Wolfram H.P. Pernice, “Thermo-optic effect of GST in on-chip photonic circuitries at telecommunication wavelengths”,Symposium E\PCOS 2015, Sept 9th-11th, Amsterdam, Netherlands. Paper without DOI

Benjamin F. Porter and Harish Bhaskaran, “Self-Assembly of Single Nanoparticles via the Hydrophobic Interaction”, Micro and Nano Engineering MNE 2015, Sept 21st-24th, Den Haag, Netherlands.Link to abstracts: http://mne2015.org/programme/full-programme/

Mercè Pacios Pujado, Ye Fan, Zhengyu He, Peiman Hosseini, Jamie Warner, Harish Bhaskaran “Direct catalysis driven manufacture of graphene-coated Atomic Force Microscope tips” Advanced Materials and Nanotechnology (AMN-7), Nelson, New Zealand, 08-12 February 2015 Oral contribution.

M. Pacios, B. Porter, G. Yashodhan, S. V. Patwardhan, H. Bhaskaran, “Kelvin Prove Microscopy for understanding the toxicity of biologically inspired silica at the nanoscale”, Poster Presentation, Microscience Microscopy Congress 2015, 29 June - 2 July 2015, Manchester Central, UK, Link to abstracts: http://www.mmc2015.org.uk/conference/scientific-programme/

POSTERS 2015

WAFT Industrial Advisory Board Meeting, October 201511 posters from WAFT Academic Collaborators

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AWARDS, RECOGNITIONS 2015

AWARDED HONORARY MEMBERSHIP OR FELLOWSHIP OF A LEARNED SOCIETY

Peiman HosseiniRAEng ERA Foundation Entrepreneurs' Award, 2015Peiman Hosseini in Prof. Harish Bhaskaran's Advanced Nanoscale Engineering group was one of four people selected for intensive entrepreneur training by the RAEng (RAEng ERA Foundation Entrepreneurs' Award) and awarded £2000. Wearable technologies are making a big impact in society – beginning to blur the boundary between human and machine. This market is set to be worth $12.6 billion by 2018. The next generation of lightweight, high performance machines will rely on technologies that are capable of bringing the user as close to a device as possible. Dr Hosseini has created the first reported nano-display device that uses both optical and electronic property modulation in Phase Change Materials. An entirely new class of ultra-thin, ultra-high resolution displays with nanosecond access speed and no power consumption in static mode is now under development by his team. This revolutionary display will initially target the rapidly growing microdisplay market compact, projection-based displays used in emerging near-eye applications like Google Glass. The first prototypes are currently under development, with a small working device set to be ready within the next 12 months. Impact: Spin-out company: Bodle Technology Limitedhttp://www.raeng.org.uk/

PERSONAL INVITATION AS KEYNOTE OR OTHER NAMED SPEAKER TO A CONFERENCE

Harish Bhaskaran,„An optoelectronic framework enabled by low-dimensional phase change films”,EPCOS 2015 Award: First (1st) prize oral presentation, Invited Talk at the EPCOS Conference, 2015, Amsterdam, 07/09/2015, http://www.rug.nl/research/zernike/epcos/information/

Harish BhaskaranBeijing

Harish Bhaskaran Berlin

POSTER/ABSTRACT PRIZE

Carlos Rios Ocampo,“Growth and Nucleation Dominated Phase-Change Materials for Nano-Optoelectronics and Display Technology”,Student Travel Grant by the European CommissionBest Poster Award at the INC11 Conference in Fukuoka, Japan, 2015http://inc11.org/

Carlos Rios Ocampo in Professor Harish Bhaskaran’s Advanced Nanoscale Engineering research group won the Best Poster Award at the INC11 Conference in Fukuoka, Japan with his poster. The International Nanotechnology Conference on Communication and Cooperation is a big conference pulling together industry, academic and government partners, especially from Europe Japan and USA, and Carlos was competing for the European award against a large number of high calibre applicants. Impact: highly cited research. High standard journal article in Nature Photonics.

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2014

PUBLICATIONS 2014

S. Wang, Y. Rong, Y. Fan, M. Pacios, H. Bhaskaran, K. He and JH. Warner, “Shape Evolution of Monolayer MoS2 Cystals Grown by Chemical Vapor Deposition”Chemistry of Materials, 26 (22) pp 6371-6379 (2014), DOI: 10.1021/cm5025662

D.S. Engstrom, B. Porter, M. Pacios and H. Bhaskaran, “Additive nanomanufacturing – A review”, Journal of Materials Research, 10.1557/jmr.2014.159 (2014). PDF.

P. Hosseini, CD Wright and H. Bhaskaran, “An optoelectronic framework enabled by low-dimensional phase change films”, Nature 511, 206–211 (2014), DOI:10.1038/nature13487

Carlos Rios, Matthias Stegmaier, Peiman Hosseini, C. David Wright, Harish Bhaskaran and Wolfram H.P. Pernice, “On-Chip Photonic Memory Elements Employing Phase-Change Materials”, Advanced Materials 26 (4), 1309-1467, 2014.

CONFERENCE PROCEEDINGS 2014

P. Hosseini, C. Rios, G. H. Rodriguez, Y.Y. Au, W. Pernice, C.D. Wright and H. Bhaskaran, “Phase Change Memories, Memristors and Memflectors”, CIMTEC 2014, Montecatini Terme (Italy).

Carlos Ríos, “Nanofotónica Integrada: óptica en un chip”,(Integrated nanophotonics: on chip optics) Reunión de Fibras Ópticas y Procesado de Señal, Oct 24th, Valencia, Spain. http://web.ua.es/es/ghpo/documentos/programafops2014.pdf

Carlos A. Ríos Ocampo, “Nanophotonics meets phase-change materials”,FOCUS Latin America 2014, Nov 11th-13th, Medellín, Colombia.http://www.eafit.edu.co/estudiantes/representantes-estudiantiles/Documents/programacion.pdf

P. Hosseini, C. Rios, G. Rodriguez-Hernandez, Y. Y. Au, C. D. Wright, W. H. P. Pernice, H. Bhaskaran, “On the electro-optical properties and applications of phase change materials” EMA2014, Orlando, US (Invited).

Mercè Pacios Pujado, Ye Fan, Zhengyu He, Peiman Hosseini, Jamie Warner, Harish Bhaskaran “Direct Catalysis Driven Manufacture of graphene-Coated Atomic Force Microscope Tips” Micro and Nano Engineering September 22-26, 2014 *Star Poster

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http://www.epapers.org/mne2014/ESR/paper_details.php?PHPSESSID=shram0uhh8le439cm78s570nl0&paper_id=8713

ABSTRACTS 2014

POSTERS 2014

AWARDS, RECOGNITIONS 2014

POSTER AWARD

Merce Pacios“Direct Catalysis Driven Manufacture of graphene-Coated Atomic Force Microscope Tips”Star poster at the 40th International Conference on Micro and Nano Engineering, 2014http://www.mne2014.org/

Dr Merce Pacios, PDRA in Prof. Harish Bhaskaran's Advanced Nanoscale Engineering research group won the star poster award at the 40th International Conference on Micro and Nano Engineering in 2014. MNE is a major annual international conference, devoted to micro and nano engineering, held in a European country every September. The conference brings together engineers and scientists from across the world to discuss recent progress and future trends in the fabrication, manufacturing, operation and application of micro and nano-structures and devices. Applications in electronics, magnetics, photonics, electromechanics, environment and life sciences are also discussed.

RESEARCH PRIZE

Prof. Harish Bhaskaran and Dr. Peimann HosseiniAcademic R&D Award at the annual IDTechEx Printed Electronics Awards held in Santa Clara USA, 2014http://www.idtechex.com/research/articles/idtechex-printed-electronics-usa-2014-award-winners-00007085.asp

The University of Oxford's Prof Harish Bhaskaran and Dr Peiman Hosseini have been awarded the Academic R& D Award at the annual IDTechEx Printed Electronics Awards held in Santa Clara USA. This award was given for the world’s first ultra-thin, flexible display technology, based on phase change materials (PCM) developed by the Oxford team. “Printed, flexible and organic electronics will eventually impact most aspects of human endeavor, with the enabling materials, equipment, components and manufacturing being developed and launched today,” said the award organisers. In a new breakthrough, Prof Bhaskaran and his postdoctoral researcher Dr Hosseini demonstrated the key technology for ultra-high resolution displays using a 7nm thin film of phase change materials. This was the subject of a recent publication in Nature (511,206–211 – 10 July 2014) and several patent applications. It is the first and only reported display device that utilizes the combination of both optical and electronic property modulation in PCMs. Phase change materials such as Ge2Sb2Te5 (GST) can reversibly switch between two solid states, amorphous and crystalline, in response to an electrically or

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optically induced stimulus. This switching is always associated with a change in the physical properties of the material (such as the refractive index). PCM have already played a key role in enabling data storage on inexpensive plastic substrates using optical pulses (e.g. CV, DVD, Blu-Ray).

Spinout company: Bodle Technologies Limited. Wearable and Flexible Technologies Collaboration.

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2013

PUBLICATIONS 2013

C. Rios, P. Hosseini, CD. Wright, H. Bhaskaran and WHP. Pernice, “On-chip Photonic Memory Elements employing Phase-Change Materials” Advanced Materials, doi: 10.1002/adma.201304476 (2013) . PDF

BF. Porter, L. Abelmann and H. Bhaskaran, “Design parameters for voltage-controllable directed assembly of single nanoparticles”, Nanotechnolog, 24 (40) 405304 (2013), DOI: 10.1088/0957-4484/24/40/405304 PDF (arxiv)

D. Garcia-Sanchez, KY Fong, H. Bhaskaran, S. Lamoreaux and HX Tang, “Casimir microscope based upon metallized high Q SiN nanomembrane resonator”, Review of Scientific Instruments, 84 (1), 015115 (2013). DOI: 10.1063/1.4774396 PDF

WHP Pernice and H. Bhaskaran, “Photonic non-volatile memories using phase change materials,” Applied Physics Letters, 101 (17), 011243 (2012) DOI: 10.1063/1.4758996 PDF - (Cover Page Article).

Read Also: Research Highlight: Nature Photonics Vol 7 (January 2013).

CONFERENCE PROCEEDINGS 2013

G. H. Rodriguez, P. Hosseini, C. D. Wright, W. H. P. Pernice, H. Bhaskaran, “Mixed-Mode Electro Optical Properties of Ge2Sb2Te5”, ISOM 2013, Seoul (South Korea).

Carlos Ríos, Peiman Hosseini, C. David Wright, Harish Bhaskaran and Wolfram H. P. Pernice, “Tunable nanophotonic circuits based on phase-change materials”, European Phase Change and Ovonics Symposium E\PCOS 2013, Sept 8th-10th, Berlin, Germany. Paper without DOIhttp://www.epcos.org/library/papers/pdf_2013/invited/S5-04.pdfhttp://hdl.handle.net/10871/20341

P.Hosseini, “High frequency enabled CAFM for next generation materials research in computing and data storage”, Bruker Nanoelectrical characterization workshop, Coventry, UK, 2013 (Invited)

C D Wright1, J A Vázquez Diosdado1, L Wang2, et al, “Nanosession: Phase Change Memories”, Frontiers in Electronic Materials: A Collection of Extended Abstracts of the Nature Conference Frontiers in Electronic Materials, June 17 to 20 2012, Aachen, Germany Book published in 2013, DOI: 10.1002/9783527667703.ch38

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ABSTRACTS 2013

POSTERS 2013

AWARDS, RECOGNITIONS 2013

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2012

PUBLICATIONS 2012

Sebastian, N Shamsudhin, H Rothuizen, U Drechsler, WW Koelmans, H Bhaskaran, HJ Quenzer , B Wagner , M Despont, “Micro-cantilevers with AlN actuators and PtSi tips for multi-frequency atomic force microscopy”, Review of Scientific Instruments, 83, 096107 (2012). PDF

Sebastian, N. Shamsudhin, H. Rothuizen, U. Drechsler, W. Koelmans, H. Bhaskaran, JJ. Quenzer, B. Wagner and M. Despont, “Design and Fabrication of micro-cantilevers for multi-frequency atomic force microscopy,” IBM Research Report RZ3832, Z1209-001 (2012).

D. Garcia-Sanchez, KY. Fong, H. Bhaskaran, S. Lamoreaux and HX. Tang, “Casimir Force and in-situ Surface Potential Measurements on Nanomembranes”, Physical Review Letters 109, 027202 (2012). PDF - (PRL Editor’s suggestion, Physics Synopsis here).

CONFERENCE PROCEEDINGS 2012

BF Porter and H. Bhaskaran, “Voltage controllable directed assembly of single nanoparticles”, Micro-and Nanoengineering Conference 2012, Toulouse - MNE 2012.http://mne2015.org/wp-content/uploads/2015/09/pdf/Tue-A-p58.pdf

WHP. Pernice and H. Bhaskaran, “Photonic-based non-volatile memory device using phase change materials”, Nature Conference on Frontiers in Electronic Materials: Correlation Effects and Memristive Phenomena, Jun 17-20, 2012, Aachen. Published in Appl. Phys. Lett.

ABSTRACTS 2012

POSTERS 2012

AWARDS, RECOGNITIONS 2012

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2011

PUBLICATIONS 2011

H. Bhaskaran, M. Li, D. Garcia-Sanchez, P. Zhao, I.Takeuchi and H.X. Tang, “Active microcantilevers based on piezoresistive ferromagnetic thin films,” Applied Physics Letters 98, 013502 (2011). PDF

CONFERENCE PROCEEDINGS 2012

2010

PUBLICATIONS 2010

H. Bhaskaran, B. Gotsmann, A. Sebastian, U. Drechsler, MA.Lantz, M. Despont, P. Jaroenapibal, RW. Carpick, Y. Liu and K. Sridharan, “Ultralow nanoscale wear through atom-by-atom attrition in silicon-containing diamond-like carbon,” Nature Nanotechnology, 5, 181 - 185 (2010), DOI:10.1038/nnano.2010.3 PDF; Supplementary Information; Supplementary Video 1; Supplementary Video 2

CONFERENCE PROCEEDINGS 2012

2009

PUBLICATIONS 2009

H. Bhaskaran, A. Sebastian, A. Pauza, H. Pozidis and M. Despont, “Nanoscale Phase Transformation in Ge2Sb2Te5 using encapsulated scanning probes”,Review of Scientific Instruments, Vol. 80 (8), 083701, 2009. DOI: 10.1063/1.3204449 PDF H. Bhaskaran, A. Sebastian, U. Drechsler and M. Despont, “Encapsulated tips for reliable nanoscale conduction in scanning probe technologies”,Nanotechnology 20 (10) 105701, (2009) PDF (rated as article of ‘exceptional interest’ by the editor).

H. Bhaskaran, A. Sebastian and M. Despont, “Nanoscale platinum silicide tips for Conducting Probe Technologies”, IEEE Transactions on Nanotechnology, vol. 8, no. 2, pp128-131, 2009. PDF

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D.V. Pelekhov, C. Selcu, P. Banerjee, K.C. Fong, P.C. Hammel, H. Bhaskaran and K. Schwab, “Lightfree magnetic resonance force microscopy for studies of electron spin polarized systems”, Journal of Magnetism and Magnetic Materials, Vol. 286, 2005. PDF

R. Swaminathan, H. Bhaskaran, G. Subramanian, P.Sandborn, M. Deeds, K. Cochran, “Reliability Assessment of delamination in chip-to-chip bonded MEMS packaging”, IEEE Journal of Advanced Packaging, vol. 26, no. 2, pp. 141-151, 2003. PDF

H. Bhaskaran, A. Sebastian and M. Despont, “Nanoscale platinum silicide tips for Conducting Probe Technologies”, IEEE Transactions on Nanotechnology, vol. 8, no. 2, pp128-131, 2009. PDF

CONFERENCE PROCEEDINGS 2009

H. Bhaskaran, A. Sebastian, A. Pauza, L. Wang, C D. Wright, M. Despont, H. Pozidis and E. Eleftheriou, “Recent Advances in Conduction Mode Scanning Probes for Phase Change Probe Storage Applications”,Proceedings of European Phase Change and Ovonics Symposium, 2009. (Invited article)

Sebastian, H. Bhaskaran, A. Pauza, M. Despont, H. Pozidis, “Novel Scanning Probe Concepts for Nanoscale Electrical Characterization”, Proc. 9th IEEE Conf. on Nanotechnology, Genova, Italy, 2009, 84-86. (Invited article)

2008

PUBLICATIONS 2008

CONFERENCE PROCEEDINGS 2008

H. Bhaskaran, B. Gotsmann, M. Lantz, U. Drechsler, A. Sebastian, M. Despont, P. Jaroenapibal, Y. Liu, K. Sridharan and R. Carpick, “Nanofabrication and nanotribology of silicon doped diamond-like-carbon”, Proceedings of Micro- and Nano-engineering, Athens, 2008 (extended abstract, oral presentation). CD. Wright, M. Armand, MM. Aziz, H. Bhaskaran, B-C. Choo, C. Davies, M. Depsont, S. Gidon, M. Klein, O. Lemmonier, A. Maisse, A. Pauza, A. Sebastian, L. Wang and M. Wuttig, “Scanning Probe-based Phase-Change Terrabyte Memories”, Proceedings of European Phase Change and Ovonics Symposium, 2008. (Invited article)

H. Bhaskaran, A. Sebastian, U. Drechsler, B. Gotsmann, R. Cannara, M. Lantz and M. Despont, “Nanoscale wear of platinum silicide tips”,Materials Research Society, Spring Meeting Abstract, 2008.

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2007

PUBLICATIONS 2007

CONFERENCE PROCEEDINGS 2007

2006

PUBLICATIONS 2006

CONFERENCE PROCEEDINGS 2006

2005

PUBLICATIONS 2005

CONFERENCE PROCEEDINGS 2005

H. Bhaskaran, D.V. Pelekhov, P.C. Hammel and K.C. Schwab, “Development of Ultra-sensitive capacitive Readout for magnetic resonance force microscopy”, Proceedings of ASME 4th Integrated Nanosystems: Design, Synthesis & Applications, September 12-14, 2005. (peer reviewed) DOI: 10.1115/NANO2005-87052

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Other Articles:

H. Bhaskaran, D. Pires, M. Lantz and M. Despont, “Method to compensate warping of wafers due to stress in thin-film polymers using a counter-stress layer”, Technical Disclosure Bulletin, IP.com, IPCOM000160818D, Nov. 2007.

H. Bhaskaran, “Using the economy to protect the environment”, Proceedings of the All-India Meeting of the Indian Society for Technical Education, Kopargaon, India, Oct. 1999.

Abrams, Michael. “WEARING THE WIRE”,Mechanical Engineering; New York137.5(May 2015): 24-25.

Edwin CartlidgeA Photonic Upgrade for Computer Memory?Optics and Photonics News Vol. 27, Issue 4, pp. 24-31 (2016) DOI:10.1364/OPN.27.4.000024

Dirk J. Broer,Applied physics: A new view on displaysNature 511, 159–160 (10 July 2014) doi:10.1038/511159a

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PATENTS

Over 10 patents and patent applications.

WO2015/097469 – (Peiman, Carlos, Harish) This is the first description of using PC and other Motts to enable not only high density optical storage, but also security markings, including for rewritable, encoded security tags for shipping containers.

Method of fabricating a semiconductor device US 20110269302 A1The invention relates to a method of fabricating a semiconductor device. The method includes: providing a semiconductor substrate and locally heating the semiconductor substrate by using a heated tip structure. Locally heating the semiconductor substrate is carried out to locally modify the electrical properties of the semiconductor substrate. The semiconductor substrate can be implanted with dopants, so that locally heating step causes a local activation of the implanted dopants. Furthermore, the semiconductor substrate can be provided with a dopant layer, so that locally heating step causes dopants to diffuse into the semiconductor substrate.

Probe-based lithography utilizing thermomechanically activated polymers US 7452570 B1Probe-based lithography, including: depositing a preceramic polymer on a substrate; writing nanoscale features in the polymer by locally transforming the preceramic polymer via a chemical reaction causing it to undergo a permanent phase change into hardened, ceramic material, the chemical reaction activated with a prescribed activation energy supplied by heat and/or pressure applied by a probe tip; then depositing new layers and continuing according to a desired three-dimensional pattern; either by (a) removing unactivated preceramic polymer utilizing a removal solvent, or (b) cross-linking unactivated preceramic polymer to act as a support medium that isolates a formed ceramic structure mechanically and/or electrically; and where the ceramic pattern is made electrically conductive by (a) incorporating dopant elements into or onto the preceramic polymer, or (b) performing the write step in a chemically-active environment that supplies dopant atoms during the chemical reaction.

Platinum silicide tip apices for probe-based technologies US 8332961 B2Tips including a platinum silicide at an apex of a single crystal silicon tip are provided herein. Also, techniques for creating a tip are provided. The techniques include depositing an amount of platinum (Pt) on a single crystal silicon tip, annealing the platinum and single crystal silicon tip to form a platinum silicide, and selectively etching the platinum with respect to the formed platinum silicide.

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Silicon carbide indents for probe storage utilizing thermomechanically activated polymer media US 7522512 B1Storing data by forming permanent indents in a preceramic polymer, on a substrate, via a chemical reaction transforming the polymer through permanent phase change into hardened, ceramic material, where the chemical reaction activation energy is supplied by heat and pressure applied by a nanoscale probe tip; reading data with the tip by obtaining a topographical signal during readout of the bits; reading data with the tip, where the substrate and ceramic material are conducting, while recording varying electrical resistance measured through the tip-sample contact as the tip slides along the surface; where a separate surface layer formed over the ceramic material including a polymeric thin film with cross-linking protects the tip during writing and readout; and where the substrate is a rigid wall material that can aid indentation by preventing the precursor polymer from accommodating stress applied by the tip with plastic deformation.

Device formed by probe-based lithography utilizing thermomechanically activated polymers US 20090255462 A1Device having features formed utilizing probe-based lithography, including: depositing a preceramic polymer on a substrate; writing nanoscale features in the polymer by locally transforming the preceramic polymer via a chemical reaction causing it to undergo a permanent phase change into hardened, ceramic material, the chemical reaction activated with a prescribed activation energy supplied by heat and/or pressure applied by a probe tip; depositing new layers and continuing according to a desired three-dimensional pattern; by cross-linking unactivated preceramic polymer to act as a support medium that isolates a formed ceramic structure mechanically and/or electrically; and where the ceramic pattern is made electrically conductive by (a) incorporating dopant elements into or onto the preceramic polymer, or (b) performing the write step in a chemically-active environment that supplies dopant atoms during the chemical reaction.

Nanophotonic spatial light modulator US 9470955 B2A nanophotonic device includes at least two waveguides located on top of a transparent substrate, which form an intersection point at which a part of a first waveguide simultaneously constitutes a part of a second waveguide. A nanoscale element located on top of the intersection point so that it partially or completely covers the intersection point is switchable between two different states, which differ by a refractive index value. The nanophotonic device is operated by injecting at least two optical pulses into the waveguides. Intensity of the optical pulses is selected so that a superposition of the optical pulses switches the nanoscale element into a desired state. Also disclosed is a nanophotonic matrix array in which parallel waveguides form nanophotonic devices. The nanophotonic matrix array may be used as a spatial light modulator (SLM), as an optical mirror, as an optical absorber, or as a tunable optical grating array.

High-speed scanning probe microscope US 8327461 B2

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The invention is directed to a probe for scanning probe microscopy. The probe 20 comprises a tunnel-current conducting part 30 and a tunnel-current insulating part 40. The said parts are configured such that the insulating part determines a minimal distance between the conducting part 30 and the sample surface. The invention may further concern a scanning probe microscope having such a probe, and a corresponding scanning probe microscopy method. Since the distance to the sample surface 100 is actually determined by the insulating part 40, controlling the vertical position of the probe 20 relative to the sample surface is easily and rapidly achieved. The configuration of the parts allows for a fast scan of the sample surface, whereby high-speed imaging can be achieved. Further, embodiments allow for topographical variations to be accurately captured through tunneling effect.

US 20160336036 A1An optical device, such as an optical storage medium, comprises a layer of material in the solid state that has a refractive index that is switchable between at least two stable values by applied light. A reflector is spaced apart from the layer of material by a solid spacer layer transmissive to light.

Thermomechanically-activated tip shape and registry restoration for probe array devices utilizing thermomechanically-activated polymers US 20090256275 A1A method of repairing worn or blunt probe tips, attaching a desired tip material, or defining the registry of probe tips relative to planar surface, including: pressing a probe tip or an array of probe tips into a substrate pre-patterned with an array of tip-shaped molds, the molds containing a preceramic material that can bond to the worn probe tips by thermal activation, the substrate having a protective layer that prevents the preceramic material and/or thermally-activated ceramic material from bonding to the substrate; pressing the worn probe tips into the molds while heating the worn probe tips causing the preceramic material to bond to the worn probe tips and form a solid ceramic material; forming an array comprising a plurality of reconstructed probe tips that are sharper or consisting of a different material than the original worn or base probe tips; and reading and/or writing, with the array comprising the plurality of reconstructed probe tips, data that was unreadable and/or unwritable with the original probe tips due to tip shape or lack of registry with a planar pattern.

Micro-electro-mechanical device with a piezoelectric actuator US 8446070 B2A micro-electro-mechanical device includes a substrate; a piezoelectric actuator disposed on the substrate; and an elastic member affixed to the substrate at a first end thereof, and mechanically coupled to the piezoelectric actuator; wherein the elastic member comprises at least one of: a notch, a groove, and a recess.

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