3D simulation of morphological effect on reflectance of Si3N4 subwavelength structures for silicon solar cells

Yiming Li*, Ming Yi Lee, Hui Wen Cheng, Zheng Liang Lu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

In this study, we investigate the reflectance property of the cylinder, right circular cone, and square pyramid shapes of silicon nitride (Si3N4) subwavelength structure (SWS) with respect to different designing parameters. In terms of three critical factors, the reflectance for physical characteristics of wavelength dependence, the reflected power density for real power reflection applied on solar cell, and the normalized reflectance (reflected power density/incident power density) for real reflectance applied on solar cell, a full three-dimensional finite element simulation is performed and discussed for the aforementioned three morphologies. The result of this study shows that the pyramid shape of SWS possesses the best reflectance property in the optical region from 400 to 1000 nm which is useful for silicon solar cell applications.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalNanoscale Research Letters
Volume7
DOIs
StatePublished - 10 Apr 2012

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