Lossless holographic spectrum splitter in lateral photovoltaic devices

D. Lin, E. Torrey, J. Leger, P. Cohen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

A lossless holographic spectrum splitter is proposed for partitioning the solar spectrum into two segments in a two-cell lateral photovoltaic (PV) device. The holographic splitter is used to redirect the majority of high energy photons to a high band-gap PV cell. A low band-gap PV cell is positioned to collect any remaining high energy photons along with the low energy photons. The optimal spectral characteristics of the holographic spectrum splitter, implemented using two multiplexed volume phase gratings, and the optimal band-gap energies of the two lateral PV cells are simultaneously obtained through a detailed balance analysis. With arbitrary band-gap energies and a concentration of 100 suns, the overall efficiency of the proposed lateral PV cell architecture can reach as high as 45% under the AM 1.5 direct-plus- circumsolar spectrum.

Original languageEnglish (US)
Title of host publicationProgram - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Pages894-898
Number of pages5
DOIs
StatePublished - Dec 1 2011
Event37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, United States
Duration: Jun 19 2011Jun 24 2011

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371

Other

Other37th IEEE Photovoltaic Specialists Conference, PVSC 2011
CountryUnited States
CitySeattle, WA
Period6/19/116/24/11

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