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.
Yiming Yang, Xingyue Peng, Steven Hyatt, and Dong Yu, "Absorption enhancement and carrier diffusion in single lead sulfide nanowire Schottky solar cells," Proc. SPIE 9553, Low-Dimensional Materials and Devices, 955307 (Presented at SPIE Nanoscience + Engineering: August 12, 2015; Published: 26 August 2015); https://doi.org/10.1117/12.2189939.
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