Analysis of surface recombination in nanowire array solar cells

Shuqing Yu; Friedhard Roemer; Bernd Witzigmann

doi:10.1117/12.922458

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2 May 2012 Analysis of surface recombination in nanowire array solar cells

Shuqing Yu; Friedhard Roemer; Bernd Witzigmann

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Proceedings Volume 8438, Photonics for Solar Energy Systems IV; 84380O (2012) https://doi.org/10.1117/12.922458
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

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.

Citation Download Citation

Shuqing Yu, Friedhard Roemer, and Bernd Witzigmann "Analysis of surface recombination in nanowire array solar cells", Proc. SPIE 8438, Photonics for Solar Energy Systems IV, 84380O (2 May 2012); doi: 10.1117/12.922458; https://doi.org/10.1117/12.922458

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