Analysis of surface recombination in nanowire array solar cells

Shuqing Yu; Friedhard Römer; Bernd Witzigmann

doi:10.1117/1.JPE.2.028002

20 September 2012 Analysis of surface recombination in nanowire array solar cells

Shuqing Yu, Friedhard Römer, Bernd Witzigmann

Author Affiliations +

Journal of Photonics for Energy, Vol. 2, Issue 1, 028002 (September 2012). https://doi.org/10.1117/1.JPE.2.028002

Abstract

In this work, microscopic three-dimensional simulations were performed on nanowire array solar cells to study the impact of surface recombination (SR) 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 SR velocity varying from 1e3 cm/s to 1e6 cm/s , the radial p-n-junction nanowire was found to provide better tolerance for SR. The SR difference within the axial and radial p-n-junction structures is explained by analyzing the relevant minority carrier density, followed by a discussion on the impact of SR on the diffusive nature of minority carriers.

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Shuqing Yu, Friedhard Römer, and Bernd Witzigmann "Analysis of surface recombination in nanowire array solar cells," Journal of Photonics for Energy 2(1), 028002 (20 September 2012). https://doi.org/10.1117/1.JPE.2.028002

Published: 20 September 2012

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