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Proceedings Paper

Absorption enhancement and carrier diffusion in single lead sulfide nanowire Schottky solar cells
Author(s): Yiming Yang; Xingyue Peng; Steven Hyatt; Dong Yu
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Paper Abstract

Semiconductor nanowire (NW) solar cells have promising potentials in solar energy conversion, benefiting from their low fabrication cost and enhanced optical absorption through light confinement. Recently, we have shown that the absorption efficiency can be significantly improved in lead sulfide (PbS) NWs with high refractive indices, by a direct observation of 350% external quantum efficiency (EQE). In this proceeding paper, we further examine the optical resonance mechanism in this promising nanomaterial. Particularly, we will present our recent results on resonance modes calculation, polarization and substrate effects on optical resonance, and intensity dependent minority carrier diffusion lengths in single PbS NW Schottky junction solar cells.

Paper Details

Date Published: 26 August 2015
PDF: 7 pages
Proc. SPIE 9553, Low-Dimensional Materials and Devices, 955307 (26 August 2015); doi: 10.1117/12.2189939
Show Author Affiliations
Yiming Yang, Univ. of California, Davis (United States)
Xingyue Peng, Univ. of California, Davis (United States)
Steven Hyatt, Univ. of California, Davis (United States)
Dong Yu, Univ. of California, Davis (United States)

Published in SPIE Proceedings Vol. 9553:
Low-Dimensional Materials and Devices
Nobuhiko P. Kobayashi; A. Alec Talin; M. Saif Islam; Albert V. Davydov, Editor(s)

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