Electron-phonon energy transfer in hot-carrier solar cells

Luque López, Antonio and Martí Vega, Antonio (2010). Electron-phonon energy transfer in hot-carrier solar cells. "Solar Physics", v. 94 (n. 2); pp. 287-296. ISSN 0038-0938. https://doi.org/10.1016/j.solmat.2009.10.001.

Description

Title: Electron-phonon energy transfer in hot-carrier solar cells
Author/s:
  • Luque López, Antonio
  • Martí Vega, Antonio
Item Type: Article
Título de Revista/Publicación: Solar Physics
Date: February 2010
Volume: 94
Subjects:
Freetext Keywords: Hot-carriers solar cells; Novel concepts; Electron–phonon interaction
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Hot-carrier solar cells may yield very high efficiency if the heat transfer from electrons to phonons is low enough. In this paper we calculate this heat transfer for the two inelastic mechanisms known to limit the electric conductivity: the multi-valley scattering in non-polar semiconductors and the coupling of electrons to longitudinal optical phonons in polar semiconductors. Heat transfer is ruled by matrix elements deduced from electric conductivity measurements. The cell power extracted from hot-carrier solar cells affected by this mechanism, but otherwise ideal, is deduced. It is found that Si and Ge solar cells, mainly under concentrated sun light, might lead to better efficiencies than conventional cells.

More information

Item ID: 8330
DC Identifier: http://oa.upm.es/8330/
OAI Identifier: oai:oa.upm.es:8330
DOI: 10.1016/j.solmat.2009.10.001
Official URL: http://www.sciencedirect.com/
Deposited by: Memoria Investigacion
Deposited on: 21 Jul 2011 12:05
Last Modified: 20 Apr 2016 17:09
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