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Title: Design guidelines for slanting silicon nanowire arrays for solar cell application
Authors: Hong, Lei
Wang, Xincai
Zheng, Hongyu
Wang, Hao
Yu, Hongyu
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2013
Source: Hong, L., Rusli , Wang, X., Zheng, H., Wang, H., & Yu, H. (2013). Design guidelines for slanting silicon nanowire arrays for solar cell application. Journal of Applied Physics, 114(8), 084303.
Series/Report no.: Journal of Applied Physics
Abstract: The reflectance and absorption characteristics of slanting silicon nanowires (SiNWs) structure have been simulated using finite element method to provide a design guideline for its application in solar cell. The slanting angle for the nanowire structure is set at 40° on Si (111) wafer. The impact of the structural periodicity (P) and wire diameter/periodicity (D/P) ratio on the optical characteristics of the slanting SiNW has been systematically analyzed. It has been found that due to the much suppressed light reflection and stronger light trapping ability, the light absorption is significantly enhanced for the slanting SiNW structure compared with vertical SiNW structure. The optimal absorption condition is achieved when P = 800 nm and D/P = 0.7, yielding the highest ultimate efficiency of 33.45%. The result is better than the 28.36% that can be achieved for optimum vertical SiNWs. A comparison of the absorption characteristics of optimum slanting and vertical SiNWs structures is presented and analyzed in terms of the physical light interaction with the structures.
ISSN: 0021-8979
DOI: 10.1063/1.4819175
Rights: © 2013 AIP Publishing LLC. This paper was published in Journal of Applied Physics and is made available as an electronic reprint (preprint) with permission of AIP. The paper can be found at the following official DOI: [].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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