Arie Zaban Department of Chemistry Institute for Nanotechnology and Advanced Materials
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Transcript of Arie Zaban Department of Chemistry Institute for Nanotechnology and Advanced Materials
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Arie ZabanDepartment of Chemistry
Institute for Nanotechnology and Advanced MaterialsBar-Ilan University, Israel
ובישראל בעולם סולארי במחקר : מגמותדרוש ומה להגיע אפשר לאיפה
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14 MW power plant at the Nellis Air Force Base (south Nevada).~30 million kilowatt-hours (30MWh) of electricity annually. Expected to reduce carbon dioxide emissions by 24,000 tons/year.
Contraction cost: $100 million. Land: 140 acres (570 dunam). The company that owns the panels is leasing the land at no cost, and Nellis is agreeing to buy the power for 20 years at about 2.2 cents/kWh, instead of the 9 cents they are paying to Nevada Power, saving the Air Force $1 million each year. None of the $100 million cost came from the Air Force.
North America’s Largest Solar-Electric Plant Switched On (28/12/2007)
The Need/Challenge: 10TW Renewable Energy
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14 MW power plant at the Nellis Air Force Base (south Nevada).
North America’s Largest Solar-Electric Plant Switched On (28/12/2007)
One plant, every hour,
for the next: 81 years
The Need/Challenge: 10TW Renewable Energy
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One plant, every hour,
for the next: 81 years
The Need/Challenge: 10TW Renewable Energy
2012 installation = 24GW• one plant every 5 hrs.• >150G$
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Research Goals
Energy Cost ($/KWh)
system cost ($/m2)
system efficiency (%)
effective sun (KWh/m2)
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Best Research Cell Efficiencies
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0
1E+27
2E+27
3E+27
4E+27
0 1 2 3 4hn (eV)
phot
ons/
(m2 eV
)Single-Bandgap PV and the Solar Spectrum (AM 1.5)
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Prince, JAP 26 (1955) 534Loferski, JAP 27 (1956) 777
Optimal Bandgap for Single Junction PV
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Best Research Cell Efficiencies
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Production, Laboratory, Theoretical PV Module Efficiency
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Global PV Module Price Learning Curve for c-si Wafer-Based and CdTe Modules, 1979 To 2015
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0
1E+27
2E+27
3E+27
4E+27
0 1 2 3 4hn (eV)
phot
ons/
(m2 eV
)Multi-Bandgap PV and the Solar Spectrum (AM 1.5)
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• cost • concentration• current matching
Multi-Bandgap Photovoltaics
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With optical losses
Bennett and Olsen, 1988, IEEE PVSC, p. 868
Maximum Efficiency for Ideal Multi-Bandgap PV
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Best Research Cell Efficiencies
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Production, Laboratory, Theoretical PV Module Efficiency
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Third Generation Options
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Up-Conversion for a Single Junction
0
1E+27
2E+27
3E+27
4E+27
0 1 2 3 4hn (eV)
phot
ons/
(m2 eV
)
Down-Conversion for a Single Junction
Third Generation Options
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Third Generation Options
Multiple exciton generation (MEG)
Phonon cooling
Auger recombinationMEG
Phonon cooling
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Third Generation Options
Luminescent solar concentrators
Plasmonic solar cells
Antenna-based solar cells
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Best Research Cell Efficiencies
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Best Research Cell Efficiencies: Emerging PV
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Research Goals
Energy Cost ($/KWh)
system cost ($/m2)
system efficiency (%)
effective sun (KWh/m2)
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System Cost
Light collection (wave guide effect)
Anti reflection coating
Charge collection
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Combinatorial Material (Absorber) Library
Co3O4 All-Oxide PV:combinatorial material science
conductance
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Bright Future Needs:
Co3O4 • Basic science• Material science• Long term funding (fuel replacement program)• Centers of excellence (nano)• Partnership with industry
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7 למאורת ב7רקיע הש7מים, על להאירוהיו.הארץ
and let them be lights in the expanse of the sky to give light on (upon) the earth.
Thank You
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The Photovoltaic (PV) Mechanism
cosT breakdown of currenT convenTional pv sysTems in The
uniTed sTaTes , 2010
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The Photovoltaic (PV) Mechanism
average worldwide pv module price level and Their cosT sTrucTure by
Technology (2010).
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Production, Laboratory, Theoretical PV Module Efficiency
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QDSSCs: Co-Sensitization (in series)
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Low Cost Multi-Bandgap Solar CellsTwo Bands Spectral Splittingwith David Cahen and Igor Lubomirsky, WIS
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hu
refractive index matching
low band-gap PV
medium band-gap PV
high band-gap PV
Waveguide Based PV System
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CdSe-QR Sensitized Solar Cell: Dipole Effect
Sample (nm)Voc (mV)
Jsc (mA/cm2)
FF (%)
η (%)
5.0 QDs 531 7.81 52 2.1440x5.0 QRs 564 9.68 49 2.69
Nano Lett. (2012), 12, 2095