Thick frontal dead layers in photovoltaic cells: theoretical quantum efficiency and determination of the diffusion length

Mayer Tapiero; Jean P. Zielinger

doi:10.1117/12.507756

6 February 2004 Thick frontal dead layers in photovoltaic cells: theoretical quantum efficiency and determination of the diffusion length

Mayer Tapiero, Jean P. Zielinger

Author Affiliations +

Proceedings Volume 5215, Organic Photovoltaics IV; (2004) https://doi.org/10.1117/12.507756
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

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.

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Mayer Tapiero and Jean P. Zielinger "Thick frontal dead layers in photovoltaic cells: theoretical quantum efficiency and determination of the diffusion length", Proc. SPIE 5215, Organic Photovoltaics IV, (6 February 2004); https://doi.org/10.1117/12.507756

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