热退火对基于酞酰亚胺太阳能电池性能提升的研究  

Research on Enhanced Performance of Phthalimide Based Solar Cells by Thermal Annealing

作　　者：邱方龙 贾永忠[1] QIU Fang-long;JIA Yong-zhong(Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China;University of Chinese Academy of Sciences,Beijing,100049,China)

机构地区：[1]中国科学院青海盐湖研究,青海西宁810008 [2]中国科学院大学,北京100049

出　　处：《盐湖研究》2020年第2期65-70,共6页Journal of Salt Lake Research

基　　金：国家自然科学基金(U1407205)。

摘　　要：本文研究了100℃下热退火对薄膜太阳能电池的性能提升的原因。借助多种表征手段,对太阳能电池的光学性能、光伏性能、载流子传输性能以及形貌进行表征。热退火后吸收光谱得到明显红移,增加了对太阳光的吸收。载流子传输性能分析表明,热退火处理能增大载流子迁移率、降低载流子的复合、增大光电流。原子力显微镜和透射电镜分析表明,热处理后的薄膜具有更好的相分离和相容性。热退火后太阳能电池的能量转化效率提高到3.6%,提升了56%。In this paper,the reason of improving the performance of thin film solar cells by annealing at 100℃was studied.The optical performance,photovoltaic performance,carrier transport performance and morphology of solar cells were characterized by various characterization methods.After thermal annealing,the absorption spectrum is red shifted obviously,which increases the absorption of sunlight.The analysis of carrier transport performance showed that heat annealing can increase carrier mobility,reduce carrier recombination and increase photocurrent.The results of AFM and TEM showed that the films after heat treatment have better phase separation and compatibility.After thermal annealing,the energy conversion efficiency of the solar cell is increased to 3.6%,56%.

关 键 词：热退火 形貌 能量转化效率 太阳能电池 

分 类 号：TM914.4[电气工程—电力电子与电力传动]