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Energy Express

Energy Express

  • Editor: Christian Seassal
  • Vol. 21, Iss. S4 — Jul. 1, 2013
  • pp: A616–A630

First-principle calculation of solar cell efficiency under incoherent illumination

Michaël Sarrazin, Aline Herman, and Olivier Deparis  »View Author Affiliations

Optics Express, Vol. 21, Issue S4, pp. A616-A630 (2013)

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Because of the temporal incoherence of sunlight, solar cells efficiency should depend on the degree of coherence of the incident light. However, numerical computation methods, which are used to optimize these devices, fundamentally consider fully coherent light. Hereafter, we show that the incoherent efficiency of solar cells can be easily analytically calculated. The incoherent efficiency is simply derived from the coherent one thanks to a convolution product with a function characterizing the incoherent light. Our approach is neither heuristic nor empiric but is deduced from first-principle, i.e. Maxwell’s equations. Usually, in order to reproduce the incoherent behavior, statistical methods requiring a high number of numerical simulations are used. With our method, such approaches are not required. Our results are compared with those from previous works and good agreement is found.

© 2013 OSA

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(040.5350) Detectors : Photovoltaic
(300.6170) Spectroscopy : Spectra
(050.1755) Diffraction and gratings : Computational electromagnetic methods

ToC Category:

Original Manuscript: March 14, 2013
Revised Manuscript: May 8, 2013
Manuscript Accepted: May 9, 2013
Published: May 23, 2013

Michaël Sarrazin, Aline Herman, and Olivier Deparis, "First-principle calculation of solar cell efficiency under incoherent illumination," Opt. Express 21, A616-A630 (2013)

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