A proposal of monolithicly integrated multijunction solar cells using lattice-matched II/VI and III/V semiconductors

Yong-Hang Zhang, Song Nan Wu, Ding Ding, Shui Qing Yu, Shane Johnson

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

2 Scopus citations

Abstract

High-efficiency multijunction solar cells are highly desirable for space and terrestrial applications. This paper proposes novel multijunction solar cell designs using lattice-matched II/VI (ZnCdMg)(SeTe) and III/V (InAlGa)(AsSb) direct bandgap materials that can be grown on GaSb or InAs substrates. Both material systems have been studied in detail separately for different applications. The combination of these lattice-matched materials uniquely offers very broad and continuous wavelength coverage, from UV to IR. The monolithic integration of the lattice-matched materials enables the growth of solar cells with many junctions without generating misfit dislocations. It is then possible to reach ultrahigh efficiencies of 43% under 1 sun AM0 condition and 52% under 240 suns for a 6-junction cell design. The availability of type-II interface configuration of many of the heterojunctions of the design will enable tunnel diodes with ultralow differential resistance. The use of wide bandgap lattice-matched materials such as ZnMgSeTe gives excellent surface and interface passivation.

Original languageEnglish (US)
Title of host publication33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
DOIs
StatePublished - 2008
Event33rd IEEE Photovoltaic Specialists Conference, PVSC 2008 - San Diego, CA, United States
Duration: May 11 2008May 16 2008

Publication series

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

Other

Other33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
CountryUnited States
CitySan Diego, CA
Period5/11/085/16/08

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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    Zhang, Y-H., Wu, S. N., Ding, D., Yu, S. Q., & Johnson, S. (2008). A proposal of monolithicly integrated multijunction solar cells using lattice-matched II/VI and III/V semiconductors. In 33rd IEEE Photovoltaic Specialists Conference, PVSC 2008 [4922555] (Conference Record of the IEEE Photovoltaic Specialists Conference). https://doi.org/10.1109/PVSC.2008.4922555