A study of the effects of surface roughening on the performance of compound semiconductor solar cell

• Main Authors: Wen-Jhang Lin, 林文章
• Other Authors: Ray-Hua Horng
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/49564766967976963228

碩士 === 雲林科技大學 === 光學電子工程研究所 === 96 === In this thesis, surface roughing processes are introduced to decrease reflectance of incident light which will enhance the light-trapping effect, and result in the improvement of the efficiency of solar cell. Two methods are investigated to rough the surface of solar cell. First, surface of p-GaAs window layer is etched with 3μm period. Second, surface of SiO2 deposited upon the p-GaAs window layer by PECVD is etched with same period. Based on I-V measurement, the roughing process did upon the SiO2 surface with 150 seconds by dry etching process could increase the efficiency from 9.76% to 13.22%.