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Applied Physics Letters / Volume 99 / Issue 11 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 99, 111102 (2011); http://dx.doi.org/10.1063/1.3636401 (3 pages)

A hot-carrier solar cell with optical energy selective contacts

D. J. Farrell1, Y. Takeda2, K. Nishikawa2, T. Nagashima3, T. Motohiro2, and N. J. Ekins-Daukes1

1Experimental Solid State Physics, Blackett Laboratory, Imperial College, London, United Kingdom
2Toyota Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
3Future Project Division, Toyota Motor Corporation, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan

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(Received 14 May 2011; accepted 21 August 2011; published online 12 September 2011)

The hot-carrier solar cell (HC-SC) is an ambitious approach to solar energy conversion which in principle can achieve high efficiency (84%) from a single bandgap semiconductor. Here we propose a method of utilising hot-carriers within a photovoltaic device in which energy is extracted optically from a hot-carrier distribution rather than through the usual approach of electrical conduction. Depending on the optical extraction rate, the concept proposed here may attain an upper efficiency approaching that of the conventional HC-SC.

© 2011 American Institute of Physics

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KEYWORDS and PACS

Keywords

hot carriers, solar cells

PACS

  • 88.40.H-

    Solar cells (photovoltaics)

  • 72.20.Ht

    High-field and nonlinear effects

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3636401

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (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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    E. F. Schubert, Y.-H. Wang, A. Y. Cho, L. W. Tu, and G. J. Zydzik, Appl. Phys. Lett. 60, 921 (1992)APPLAB000060000008000921000001.

    T. Trupke, M. A. Green, and P. Würfel, J. Appl. Phys. 92, 1668 (2002)JAPIAU000092000003001668000001.


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