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Proceedings Paper

Thick frontal dead layers in photovoltaic cells: theoretical quantum efficiency and determination of the diffusion length
Author(s): Mayer Tapiero; Jean P. Zielinger
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Paper Abstract

Effects of a dead layer localized at the interface in a photodiode are studied theoretically. The model proposed here is developed for a Schottky junction but can be adapted to any other structure. A sharp decrease of the quantum efficiency in the short wavelength range is predicted, as generally observed experimentally. The various features encountered for the spectral responses are explained by the influence of the diffusion length L and of the dead layer thickness d. It is shown, moreover, that measuring the diffusion length from the photovoltaic short circuit spectra gives, in fact, the sum of L and d but determination of the maximum in the spectral response allows to separate the two.

Paper Details

Date Published: 6 February 2004
PDF: 10 pages
Proc. SPIE 5215, Organic Photovoltaics IV, (6 February 2004); doi: 10.1117/12.507756
Show Author Affiliations
Mayer Tapiero, Institut de Physique et Chimie des Materiaux de Strasbourg (France)
Jean P. Zielinger, Institut de Physique et Chimie des Materiaux de Strasbourg (France)

Published in SPIE Proceedings Vol. 5215:
Organic Photovoltaics IV
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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