Analysis of surface recombination in nanowire array solar cells

Shuqing Yu; Friedhard Römer; Bernd Witzigmann

doi: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.

Citation Download Citation

Shuqing Yu, Friedhard Römer, 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 . Submission:

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