Light-trapping properties of the Si inclined nanowire arrays

The light trapping performance of Si nanowire with different inclination angles were systematically studied by COMSOL Multiphysics. The inclined nanowires with inclination angles smaller than 60° show greater light trapping ability than their counterparts of the vertical nanowires. The Si solar cell...

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Bibliographic Details
Published in:Optics communications 2017-01, Vol.382, p.332-336
Main Authors: Xu, Zhaopeng, Huangfu, Huichao, He, Long, Wang, Jiazhuang, Yang, Dong, Guo, Jingwei, Wang, Haiyan
Format: Article
Language:English
Subjects:
COMSOL Multiphysics
Inclined nanowires
Light trapping
Nanostructures
Solar cells
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Summary:The light trapping performance of Si nanowire with different inclination angles were systematically studied by COMSOL Multiphysics. The inclined nanowires with inclination angles smaller than 60° show greater light trapping ability than their counterparts of the vertical nanowires. The Si solar cell with the inclined nanowires of the optimal parameters, whose θ=30°, P=400nm, D=140nm, can achieve a 32.395mA/cm2 short circuit photocurrent density and a 35.655% conversion efficiency. The study of the inclined nanowire provides an effective way for further utilization of the incoming light. •Inclined nanowire improves Jsc and η.•Mechanism of it.•The Jsc and η is 33.311mA/cm2, 35.655% respectively.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2016.08.018