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Proceedings Paper

A metallic hot carrier photovoltaic cell
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Paper Abstract

Hot carrier solar cells have the promise to increase photovoltaic conversion efficiency beyond the Shockley-Quiesser limit and towards the thermodynamic maximum of 85%. The concept relies on the ability to extract photo-generated electrons from an absorber region faster than they can lose energy to the lattice in a process termed thermalisation. We have previously presented a realization of such a cell under limited operating conditions, in particular at low temperature, for narrowband illumination and with low total absorption of light. In this work we present the idea of a metallic absorber to address some of these limitations and show how such an absorber is a promising candidate to realize the hot carrier solar cell. In addition to a theoretical justification of the metallic hot carrier solar cell, we show device fabrication and experimental current-voltage characteristics of an initial cell, showing absorption of light in a thin-film metal region and a photo-current driven by this absorption.

Paper Details

Date Published: 16 March 2015
PDF: 8 pages
Proc. SPIE 9358, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV, 935810 (16 March 2015); doi: 10.1117/12.2077573
Show Author Affiliations
J. A. R. Dimmock, Sharp Labs. of Europe Ltd. (United Kingdom)
Imperial College London (United Kingdom)
M. Kauer, Sharp Labs. of Europe Ltd. (United Kingdom)
P. N. Stavrinou, Imperial College London (United Kingdom)
N. J. Ekins-Daukes, Imperial College London (United Kingdom)

Published in SPIE Proceedings Vol. 9358:
Physics, Simulation, and Photonic Engineering of Photovoltaic Devices IV
Alexandre Freundlich; Jean-François Guillemoles; Masakazu Sugiyama, Editor(s)

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