Broadband omnidirectional antireflection coatings for metal-backed solar cells optimized using simulated annealing algorithm incorporated with solar spectrum

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/51017

Title:	Broadband omnidirectional antireflection coatings for metal-backed solar cells optimized using simulated annealing algorithm incorporated with solar spectrum
Authors:	Chang,YJ;Chen,YT
Contributors:	光電科學與工程學系
Keywords:	LOW-REFRACTIVE-INDEX;PHOTOVOLTAIC CELLS;GENETIC ALGORITHM
Date:	2011
Issue Date:	2012-03-27 18:15:38 (UTC+8)
Publisher:	國立中央大學
Abstract:	Broadband omnidirectional antireflection (AR) coatings for solar cells optimized using simulated annealing (SA) algorithm incorporated with the solar (irradiance) spectrum at Earth's surface (AM1.57 radiation) are described. Material dispersions and reflections from the planar backside metal are considered in the rigorous electromagnetic calculations. Optimized AR coatings for bulk crystalline Si and thin-film CuIn(1-x)Ga(x)Se(2) (CIGS) solar cells as two representative cases are presented and the effect of solar spectrum in the AR coating designs is investigated. In general, the angle-averaged reflectance of a solar-spectrum-incorporated AR design is shown to be smaller and more uniform in the spectral range with relatively stronger solar irradiance. By incorporating the transparent conductive and buffer layers as part of the AR coating in CIGS solar cells (2 mu m-thick CIGS layer), a single MgF(2) layer could provide an average reflectance of 8.46% for wavelengths ranging from 350 nm to 1200 nm and incident angles from 0 degrees to 80 degrees. (C) 2011 Optical Society of America
Relation:	OPTICS EXPRESS
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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