Light Absorption Enhancement in Single Si(Core)/SiO₂(Shell) Coaxial Nanowires for Photovoltaic Applications

Abstract:

We have carried out detailed investigations into the light absorption in single Si (core)/SiO₂ (shell) coaxial nanowires (NWs) within the framework of the Lorenz-Mie light scattering theory. We have found that the light absorption in single coaxial NWs can be significantly enhanced as compared to in Si NWs, due to SiO₂ shells. We have also found that the photocurrent can be enhanced up to ~56% for the coaxial NW of the core radius of 150 nm by tuning the shell thickness.

• Periodical: Advanced Materials Research (Volumes 391-392)
• Pages: 264-268
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.391-392.264
• Online since: December 2011
• Authors: Wen Fu Liu, Fu Zhao Sun
• Keywords: Coaxial Nanowires, Fano Effect, Light Absorption, Lorenz-Mie Light Scattering Theory

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