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Modeling solar cells with the dopant-diffused layers treated as conductive boundaries

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • Rolf Brendel

Organisationseinheiten

Externe Organisationen

  • Institut für Solarenergieforschung GmbH (ISFH)

Details

OriginalspracheEnglisch
Seiten (von - bis)31-43
Seitenumfang13
FachzeitschriftProgress in Photovoltaics: Research and Applications
Jahrgang20
Ausgabenummer1
Frühes Online-Datum11 März 2010
PublikationsstatusVeröffentlicht - 29 Dez. 2011

Abstract

Modeling of transport and recombination of charge carriers in solar cells is useful for understanding and improving the device performance. We implement the fully coupled transport equations for electrons and holes into the finite-element partial differential equation solver COMSOL. The dopant-diffused surface regions such as junctions, floating junctions, or back surface field layers are treated as conductive boundaries of the volume in which the semiconductor equations are solved. This so-called conductive boundary (CoBo) model characterizes diffused layers by their sheet resistances and diode saturation current densities. Both are directly experimentally accessible. The CoBo model exhibits excellent numerical stability and enables two-dimensional simulations on a laptop. We find agreement when testing the two-dimensional COMSOL implementation of the CoBo model for one-dimensional devices against simulations using the code PC1D. We apply the CoBo model to elucidate how the sheet resistance of diffused vias impacts the power conversion efficiency of emitter wrap through solar cells.

ASJC Scopus Sachgebiete

Ziele für nachhaltige Entwicklung

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Modeling solar cells with the dopant-diffused layers treated as conductive boundaries. / Brendel, Rolf.
in: Progress in Photovoltaics: Research and Applications, Jahrgang 20, Nr. 1, 29.12.2011, S. 31-43.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Download
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