光注入提升晶体硅异质结太阳电池性能的研究  

ENHANCED PERFORMANCE OF CRYSTALLINE SILICON HETEROJUNCTION SOLAR CELLS THROUGH LIGHT INJECTION

作　　者：沈旭宇 黄信二 吕文辉[1] Shen Xuyu;Huang Xiner;Lyu Wenhui(College of Science,Huzhou Normal University,Huzhou 313000,China;College of Engineering,Huzhou Normal University,Huzhou 313000,China;Huzhou Akcome Optronics Science&Technology Co.,Ltd.,Huzhou 313117,China)

机构地区：[1]湖州师范学院理学院,湖州313000 [2]湖州师范学院工学院,湖州313000 [3]湖州爱康光电科技有限公司,湖州313117

出　　处：《太阳能学报》2024年第4期519-523,共5页Acta Energiae Solaris Sinica

基　　金：湖州市科技特派员专项(2019KT31)。

摘　　要：该文制备工业尺寸的晶体硅异质结太阳电池,研究光注入对电池光电性能的影响。实验结果表明:光注入有效提升了晶体硅异质结太阳电池的光电转换效率,经过光注入后电池光电转换绝对效率提升了0.33%,均值达到24.47个百分点。对比光注入前后的光电性能参数,其效率提升的主要因素是光注入使得电池的填充因子被有效提升。结合光注入前后电池的Suns-Voc测试,证实了光注入能使电池的串联电阻大比例降低。因此,光注入改善电池性能的主要物理原因可归结为:串联电阻的降低提升了电池的填充因子。This paper fabricated industrially-sized crystalline silicon heterojunction(HJT)solar cells and investigated the effect of light injection on the optoelectronic performance of the cells.The experimental results demonstrate that light injection effectively enhances the photovoltaic conversion efficiency of HJT solar cells.After light injection,the absolute improvement in the photovoltaic conversion efficiency of the cells reaches 0.33%.Combined with the I-V test under simulated illumination and Suns-Voc test,it is confirmed that the light injection can reduce the series resistance of the cell.Therefore,the main physical mechanism of enhanced cell performance is attributed to the reduction in series resistance by light injection.

关 键 词：硅太阳电池 异质结 光注入 光电转换效率 串联电阻 

分 类 号：TN36[电子电信—物理电子学]