Doubling the power output of bifacial thin-film GaAs solar cells by embedding them in luminescent waveguides

Xing Sheng, Ling Shen, Taehwan Kim, Lanfang Li, Xinran Wang, Ryan Dowdy, Paul Froeter, Kazuki Shigeta, Xiuling Li, Ralph G. Nuzzo, Noel C. Giebink, John A. Rogers

Research output: Contribution to journalArticle

Abstract

Thin-film, microscale GaAs solar cells transfer printed into luminescent concentrating waveguides show significantly enhanced power output compared to cells evaluated in isolation. Experimental and numerical simulation results demonstrate that optimized configurations involve a free-standing waveguide and a diffuse backside reflector, as a way to maximize capture of both waveguided and scattered photons. Such unusual options in engineering design suggest promising additional avenues for the use of luminescent concentration in advanced photovoltaics.

Original languageEnglish (US)
Pages (from-to)991-996
Number of pages6
JournalAdvanced Energy Materials
Volume3
Issue number8
DOIs
StatePublished - Aug 1 2013

Keywords

  • GaAs solar cells
  • luminescent solar concentrators
  • transfer printing

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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    Sheng, X., Shen, L., Kim, T., Li, L., Wang, X., Dowdy, R., Froeter, P., Shigeta, K., Li, X., Nuzzo, R. G., Giebink, N. C., & Rogers, J. A. (2013). Doubling the power output of bifacial thin-film GaAs solar cells by embedding them in luminescent waveguides. Advanced Energy Materials, 3(8), 991-996. https://doi.org/10.1002/aenm.201201064