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Proceedings Paper

Analysis of surface recombination in nanowire array solar cells
Author(s): Shuqing Yu; Friedhard Roemer; Bernd Witzigmann
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Paper Abstract

In this work, microscopic three-dimensional (3D) simulations were performed on nanowire array solar cells to study the impact of surface recombination on the photovoltaic performance. Both axially and radially arranged p-n junction in III-V based structures were taken into consideration. From the cases with surface recombination velocity varying from 1e3cm/s to 1e6cm/s, the core-shell nanowire was found to provide better tolerance for surface recombination. The difference of surface recombination within the axial and core-shell structures is explained by analyzing the relevent minority carrier density, followed by a discussion on the impact of surface recombination on the performance of nanowires as photovoltaic devices.

Paper Details

Date Published: 2 May 2012
PDF: 8 pages
Proc. SPIE 8438, Photonics for Solar Energy Systems IV, 84380O (2 May 2012); doi: 10.1117/12.922458
Show Author Affiliations
Shuqing Yu, Univ. Kassel (Germany)
Friedhard Roemer, Univ. Kassel (Germany)
Bernd Witzigmann, Univ. Kassel (Germany)

Published in SPIE Proceedings Vol. 8438:
Photonics for Solar Energy Systems IV
Ralf Wehrspohn; Andreas Gombert, Editor(s)

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