Fabrication and Simulation Anaylsis of High Efficiency GaAs Solar Cells

• Main Authors: Lee, Chyi-Lin, 李奇霖
• Other Authors: Wei-I Lee
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/13193936277442977376

碩士 === 國立交通大學 === 電子物理學系 === 84 === High efficiency solar cells can be applied on space satellites and power plants. GaAs solar cells is a good choice forhigh efficiency solar cell. In this research we will discuss thefabrication and theory simulation analysis of high- efficiency GaAssolar cells. In this research the method of image reversal is usedto produce the top contact of GaAs solar cells. Because of the image reversal technique, the width of fingers can be reduced from 400 ?m to 20 ?m. So the lateral resistance can be reduced and the fill factor will be improved. In this article we use the low-high junction model to analyze the GaAs solar cell. From the simulation how the structure parameter affect the solar cells preformance can be understood. So wecan use this result to design our solar cells. Moreover a spectral response system is established. From this system the quantum efficiency for all solar cell components can be investigated. We also successfully demonstrate a 15.6% GaAs solar cell.This efficiency is measured under AM1, one sun and without AR coating.We expect that if AR coating is used on the solar cell, the efficiency will increase by 2~3% and reach about 18%.