Experimental demonstration of a tapered silicon core–shell nanowire solar cell enhanced by a nickel silicide contact

Rui Ren; Hucheng Sun

doi:10.1117/1.JNP.12.046013

5 November 2018 Experimental demonstration of a tapered silicon core–shell nanowire solar cell enhanced by a nickel silicide contact

Rui Ren, Hucheng Sun

Author Affiliations +

Journal of Nanophotonics, Vol. 12, Issue 4, 046013 (November 2018). https://doi.org/10.1117/1.JNP.12.046013

Abstract

A wholly passivated silicon core–shell nanowire solar cell incorporating a nickel silicide (NiSi) contact shows reduced series resistance. The configuration’s highly ordered vertical nanowire array is produced by the top-down method on a silicon solar-cell surface. The prepared samples demonstrate reflectance of ∼65 % to 7%. The sample without the NiSi contact has a high short-circuit current density of 31.0 mA / cm². The cells with ∼5 nm NiSi show an improved fill factor of 70%, contributing to a high power-conversion efficiency of 10.8%.

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Rui Ren and Hucheng Sun "Experimental demonstration of a tapered silicon core–shell nanowire solar cell enhanced by a nickel silicide contact," Journal of Nanophotonics 12(4), 046013 (5 November 2018). https://doi.org/10.1117/1.JNP.12.046013

Received: 16 December 2017; Accepted: 22 October 2018; Published: 5 November 2018

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KEYWORDS

Silicon

Solar cells

Nanowires

Nickel

Reflectivity

External quantum efficiency

Sun

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