Thin Film Tandem Photovoltaic Cell From II-IV-V Chalcopyrites

Mark Van Schilfgaarde, Timothy J. Coutts, Nathan Newman, Timothy Peshek

Research output: Contribution to journalArticlepeer-review

20 Scopus Citations

Abstract

Using quasiparticle self-consistent GW (QSGW) theory, we analyze materials properties of the II-IV-V family of chalcopyrite semiconductors consisting of compounds and alloys based on (Mg,Zn,Cd) (Si,Ge,Sn) (P,As)2, and show how they may offer excellent opportunities for the development of tandem thin-film solar cells. The constituent elements are abundant and nearly lattice-matched compounds can be found with near optimum band gaps. We show the close connection to band structures of other fourfold coordinated compounds that have led to the highest efficiency devices, and suggest potentially optimum alloys for tandem thin-film cells.

Original languageAmerican English
Article numberArticle No. 143503
Number of pages3
JournalApplied Physics Letters
Volume96
Issue number14
DOIs
StatePublished - 2010
Externally publishedYes

NREL Publication Number

  • NREL/JA-200-48228

Keywords

  • photovoltaic
  • PV
  • solar
  • thin film

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