in II polarization: the line shift E g = E 11 =1.43 eV E g pert = 1.33 eV
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Lifting of the optical selection rules changes the spectrum Lifting of the optical selection rules changes the spectrum qualitatively qualitatively : Old transitions in the perpendicular : Old transitions in the perpendicular polarization are present (but shifted); new ones appear polarization are present (but shifted); new ones appear that are prohibited for the pristine nanotube. that are prohibited for the pristine nanotube. in II in II polarization: polarization: the line shift the line shift E g = E = E 11 11 =1.43 eV =1.43 eV E g pert pert = 1.33 eV = 1.33 eV in perp in perp polarization polarization (vertical energy (vertical energy axis): new line axis): new line appears at much appears at much lower energy lower energy 3.5 2.5 1.5 3.5 2.5 1.5 Bare [7,0] tube Bare [7,0] tube DNA-wrapped tube DNA-wrapped tube Perp. Absorption Energy Perp. Absorption Energy (eV) (eV) Parallel Emission Energy (eV) Parallel Emission Energy (eV) 0.8 1.8 2.8 0.8 1.8 2.8 3D view of 3D view of the the hybrids hybrids Optical Identification of Optical Identification of Helical ss-DNA Wrapping on the Helical ss-DNA Wrapping on the Nanotube Nanotube Small Small v.4, p.1284-6, Aug 2008 v.4, p.1284-6, Aug 2008 AR of PhysChem, v.61, 2010 AR of PhysChem, v.61, 2010 Slava V. Rotkin, Physics Department and Center for Advanced Materials and Nanotechnology, Lehigh University, Bethlehem, PA 18015
description
Perp. Absorption Energy (eV). 3.5. 3.5. DNA-wrapped tube. Bare [7,0] tube. 2.5. 2.5. 0.8. 1.8. 2.8. 0.8. 1.8. 2.8. 1.5. 1.5. 3D view of the hybrids. Parallel Emission Energy (eV). Optical Identification of Helical ss-DNA Wrapping on the Nanotube. - PowerPoint PPT Presentation
Transcript of in II polarization: the line shift E g = E 11 =1.43 eV E g pert = 1.33 eV
Lifting of the optical selection rules changes the spectrum Lifting of the optical selection rules changes the spectrum qualitativelyqualitatively: : Old transitions in the perpendicular polarization are present (but shifted); Old transitions in the perpendicular polarization are present (but shifted); new ones appear that are prohibited for the pristine nanotube. new ones appear that are prohibited for the pristine nanotube.
in II polarization: in II polarization: the line shiftthe line shiftEEgg= E= E1111=1.43 eV=1.43 eV
EEggpertpert = 1.33 eV = 1.33 eV
in perp polarization in perp polarization (vertical energy axis): (vertical energy axis): new line appears at new line appears at much lower energymuch lower energy
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Bare [7,0] tubeBare [7,0] tube DNA-wrapped tubeDNA-wrapped tube
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0.8 1.8 2.80.8 1.8 2.83D view of 3D view of the hybridsthe hybrids
Optical Identification of Optical Identification of Helical ss-DNA Wrapping on the NanotubeHelical ss-DNA Wrapping on the Nanotube
Optical Identification of Optical Identification of Helical ss-DNA Wrapping on the NanotubeHelical ss-DNA Wrapping on the Nanotube
SmallSmall v.4, p.1284-6, Aug 2008 v.4, p.1284-6, Aug 2008AR of PhysChem, v.61, 2010 AR of PhysChem, v.61, 2010
Slava V. Rotkin, Physics Department and Center for Advanced Materials and Nanotechnology, Lehigh University, Bethlehem, PA 18015
Slava V. Rotkin, Physics Department and Center for Advanced Materials and Nanotechnology, Lehigh University, Bethlehem, PA 18015
