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Journal of Renewable and Sustainable Energy / Volume 1 / Issue 1 / REGULAR ARTICLES

J. Renewable Sustainable Energy 1, 013106 (2009); http://dx.doi.org/10.1063/1.3081510 (6 pages)

A two junction, four terminal photovoltaic device for enhanced light to electric power conversion using a low-cost dichroic mirror

Sven Rühle1, Akiba Segal2, Ayelet Vilan2,3, Sarah R. Kurtz4, Larissa Grinis1, Arie Zaban1, Igor Lubomirsky3, and David Cahen3

1Department of Chemistry, Bar-Ilan University, Ramat Gan 52900, Israel
2Department of Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
3Department of Materials & Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel
4National Renewable Energy Laboratory, Golden, Colorado 80401, USA

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(Received 2 October 2008; accepted 26 January 2009; published online 24 February 2009)

A low-cost dichroic mirror can be used successfully for solar spectrum splitting to enhance solar to electrical energy conversion. The mirror is optimized for use with a polycrystalline silicon photovoltaic cell (pc-Si). With the dichroic mirror simultaneous excitation of a medium-efficient (11.1%) commercial pc-Si and a custom-made high band gap GaInP cell (12.3%), yields 16.8% efficiency, with both cells operating at maximum power. Our results clearly show that what is missing for this simple low-cost enhancement of Si solar cell efficiency are low-cost high band gap cells.

© 2009 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENTAL
  3. RESULTS AND DISCUSSION
  4. CONCLUSIONS

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KEYWORDS and PACS

Keywords

dichroism, elemental semiconductors, gallium compounds, III-V semiconductors, indium compounds, mirrors, silicon, solar absorber-convertors, solar cells

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3081510

PUBLICATION DATA

ISSN

1941-7012 (print)  
1941-7012 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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    R. R. King, D. C. Law, K. M. Edmondson, C. M. Fetzer, G. S. Kinsey, H. Yoon, R. A. Sherif, and N. H. Karam, Appl. Phys. Lett. 90, 183516 (2007)APPLAB000090000018183516000001.

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