Flexible concentrator photovoltaics based on microscale silicon solar cells embedded in luminescent waveguides

Jongseung Yoon, Lanfang Li, Andrey V. Semichaevsky, Jae Ha Ryu, Harley T. Johnson, Ralph G. Nuzzo, John A. Rogers

Research output: Contribution to journalArticle

Abstract

Unconventional methods to exploit monocrystalline silicon and other established materials in photovoltaic (PV) systems can create new engineering opportunities, device capabilities and cost structures. Here we show a type of composite luminescent concentrator PV system that embeds large scale, interconnected arrays of microscale silicon solar cells in thin matrix layers doped with luminophores. Photons that strike cells directly generate power in the usual manner; those incident on the matrix launch wavelength-downconverted photons that reflect and waveguide into the sides and bottom surfaces of the cells to increase further their power output, by more than 300% in examples reported here. Unlike conventional luminescent photovoltaics, this unusual design can be implemented in ultrathin, mechanically bendable formats. Detailed studies of design considerations and fabrication aspects for such devices, using both experimental and computational approaches, provide quantitative descriptions of the underlying materials science and optics.

Original languageEnglish (US)
Article number343
JournalNature communications
Volume2
Issue number1
DOIs
StatePublished - Jun 22 2011

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Silicon solar cells
concentrators
Silicon
microbalances
Waveguides
Photons
solar cells
Monocrystalline silicon
waveguides
photons
Materials science
materials science
matrices
cells
format
Optics
Equipment and Supplies
engineering
optics
costs

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Flexible concentrator photovoltaics based on microscale silicon solar cells embedded in luminescent waveguides. / Yoon, Jongseung; Li, Lanfang; Semichaevsky, Andrey V.; Ryu, Jae Ha; Johnson, Harley T.; Nuzzo, Ralph G.; Rogers, John A.

In: Nature communications, Vol. 2, No. 1, 343, 22.06.2011.

Research output: Contribution to journalArticle

Yoon, Jongseung ; Li, Lanfang ; Semichaevsky, Andrey V. ; Ryu, Jae Ha ; Johnson, Harley T. ; Nuzzo, Ralph G. ; Rogers, John A. / Flexible concentrator photovoltaics based on microscale silicon solar cells embedded in luminescent waveguides. In: Nature communications. 2011 ; Vol. 2, No. 1.
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