GaAsP nanowire-on-Si tandem solar cell

Brendan A. Wood; Paul Kuyanov; Martin Aagesen; Ray R. LaPierre

doi:10.1117/1.JPE.7.042502

5 December 2017 GaAsP nanowire-on-Si tandem solar cell

Brendan A. Wood, Paul Kuyanov, Martin Aagesen, Ray R. LaPierre

Author Affiliations +

Funded by: Natural Sciences and Engineering Research Council of Canada, Danish ForskEL Program

Journal of Photonics for Energy, Vol. 7, Issue 4, 042502 (December 2017). https://doi.org/10.1117/1.JPE.7.042502

Abstract

GaAsP self-assisted core–shell p- i- n nanowires were grown on Si solar cells. The resulting tandem cell exhibited an enhanced Voc of 1.16 V, increasing from 0.54 V for the Si cell alone. Nevertheless, the efficiency of the tandem cell was only 3.51% as compared with 9.33% for the Si cell due to a current-limiting short-circuit current density from the nanowires. Further improvement in device performance can be realized by improving the nanowire open-circuit voltage and short-circuit current, related to doping of the nanowires.

Citation Download Citation

Brendan A. Wood, Paul Kuyanov, Martin Aagesen, and Ray R. LaPierre "GaAsP nanowire-on-Si tandem solar cell," Journal of Photonics for Energy 7(4), 042502 (5 December 2017). https://doi.org/10.1117/1.JPE.7.042502

Received: 2 October 2017; Accepted: 16 November 2017; Published: 5 December 2017

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