Journal
SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume 94, Issue 2, Pages 287-296Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2009.10.001
Keywords
Hot-carriers solar cells; Novel concepts; Electron-phonon interaction
Funding
- Global Climate and Energy Project (GCEP)
Ask authors/readers for more resources
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. (C) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available