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Full spectrum ultrahigh efficiency photovoltaics

Atwater, Harry A. and Escarra, Matthew D. and Eisler, Carissa N. and Kosten, Emily D. and Warmann, Emily C. and Darbe, Sunita and Lloyd, John and Flowers, Cristofer (2013) Full spectrum ultrahigh efficiency photovoltaics. In: IEEE 39th Photovoltaic Specialists Conference. IEEE , Piscataway, NJ, pp. 1631-1634. ISBN 978-1-4799-3299-3.

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Future photovoltaic systems can be greatly benefited by modules that exhibit simultaneously ultrahigh efficiency (> 50%) and low-cost (< $0.50/Wp) to enable sharp reductions in the levelized cost of electricity. A 'full spectrum' photovoltaic module, which takes advantage of advances in low-cost III-V compound cell fabrication and emerging optical and electronic fabrication/assembly methods, features 6-15 independently connected subcells in a spectrum splitting, concentrating photovoltaic receiver. Module architectures utilizing independently connected single junction and multijunction subcells allow flexibility in subcell selection for optimal energy bandgaps and fabrication, and also reduce the constraints posed by current matching requirements. Several different spectrum-splitting optical architectures designed for systems with many (>6) subcells are possible, including designs based on holographic spectrum splitting, specular reflection in dielectric polyhedra and light trapping textured filtered dielectric slabs that perform as nonimaging concentrators.

Item Type:Book Section
Related URLs:
URLURL TypeDescription DOIArticle
Atwater, Harry A.0000-0001-9435-0201
Escarra, Matthew D.0000-0002-0232-942X
Eisler, Carissa N.0000-0002-5755-5280
Warmann, Emily C.0000-0002-2810-4608
Darbe, Sunita0000-0002-8099-1814
Flowers, Cristofer0000-0001-7864-3629
Additional Information:© 2013 IEEE. The Dow Chemical Company supported LTFC design was supported by Interactions in Energy Conversion’ Energy Frontier Research Center under grant DE-SC0001293, Research Projects Agency-Energy (ARPA Department of Energy, under Award Number DE AR0000333, supported the PSR design.
Funding AgencyGrant Number
Dow Chemical CompanyUNSPECIFIED
Department of Energy (DOE)DE-SC0001293
Advanced Research Projects Agency-Energy (ARPA-E)UNSPECIFIED
Department of Energy (DOE)DE-AR0000333
Subject Keywords:spectrum splitting, multijunction cells
Record Number:CaltechAUTHORS:20140918-102112364
Persistent URL:
Official Citation:Atwater, H.A; Escarra, M.D.; Eisler, C.N.; Kosten, E.D.; Warmann, E.C.; Darbe, S.; Lloyd, J.; Flowers, C., "Full spectrum ultrahigh efficiency photovoltaics," Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th , vol., no., pp.1631,1634, 16-21 June 2013 doi: 10.1109/PVSC.2013.6744457 URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49814
Deposited By: Tony Diaz
Deposited On:18 Sep 2014 22:25
Last Modified:10 Nov 2021 18:48

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