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

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.

Authors:
 [1];  [2];  [3];  [2];  [4];  [5];  [6]
  1. Univ. of Southern California, Los Angeles, CA (United States). Dept. of Chemical Engineering and Materials Science
  2. Univ. of Illinois, Urbana, IL (United States). Dept. of Materials Science and Engineering and Frederick Seitz Materials Research Lab. (FS-MRL)
  3. Univ. of Illinois, Urbana, IL (United States). Dept. of Mechanical Science and Engineering
  4. Univ. of Illinois, Urbana, IL (United States). Dept. of Mechanical Science and Engineering and Frederick Seitz Materials Research Lab. (FS-MRL)
  5. Univ. of Illinois, Urbana, IL (United States). Dept. of Chemistry and Frederick Seitz Materials Research Lab. (FS-MRL)
  6. Univ. of Illinois, Urbana, IL (United States). Depts. of Materials Science and Engineering, Mechanical Science and Engineering, Chemistry and Frederick Seitz Materials Research Lab. (FS-MRL)
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC); Light-Material Interactions in Energy Conversion (LMI)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1065583
DOE Contract Number:  
SC0001293; FG02-07ER46471
Resource Type:
Journal Article
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 2; Related Information: LMI partners with California Institute of Technology (lead); Harvard University; University of Illinois, Urbana-Champaign; Lawrence Berkeley National Laboratory; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; solar (photovoltaic), solid state lighting, phonons, thermal conductivity, electrodes - solar, materials and chemistry by design, optics, synthesis (novel materials), synthesis (self-assembly)

Citation Formats

Yoon, Jongseung, Li, Lanfang, Semichaevsky, Andrey V., Ryu, Jae Ha, Johnson, Harley T., Nuzzo, Ralph G., and Rogers, John A. Flexible concentrator photovoltaics based on microscale silicon solar cells embedded in luminescent waveguides. United States: N. p., 2011. Web. doi:10.1038/ncomms1318.
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. United States. doi:10.1038/ncomms1318.
Yoon, Jongseung, Li, Lanfang, Semichaevsky, Andrey V., Ryu, Jae Ha, Johnson, Harley T., Nuzzo, Ralph G., and Rogers, John A. Tue . "Flexible concentrator photovoltaics based on microscale silicon solar cells embedded in luminescent waveguides". United States. doi:10.1038/ncomms1318.
@article{osti_1065583,
title = {Flexible concentrator photovoltaics based on microscale silicon solar cells embedded in luminescent waveguides},
author = {Yoon, Jongseung and Li, Lanfang and Semichaevsky, Andrey V. and Ryu, Jae Ha and Johnson, Harley T. and Nuzzo, Ralph G. and Rogers, John A.},
abstractNote = {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.},
doi = {10.1038/ncomms1318},
journal = {Nature Communications},
issn = {2041-1723},
number = ,
volume = 2,
place = {United States},
year = {2011},
month = {6}
}