点击化学交联用于提升有机太阳能电池活性层的稳定性  

Click Chemical Crosslinking for Enhancing Active Layer Stability in Organic Solar Cells

作　　者：丛婷婷 郑续凡 高博文 张家伟 王迅昶 CONG Tingting;ZHENG Xufan;GAO Bowen;ZHANG Jiawei;WANG Xunchang(School of Optoelectronic Materials&Technology,Jianghan University,Wuhan 430056,China;School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan 430205,China)

机构地区：[1]江汉大学光电材料与技术学院,湖北武汉430056 [2]武汉工程大学化工与制药学院,湖北武汉430205

出　　处：《化工技术与开发》2024年第8期23-29,共7页Technology & Development of Chemical Industry

摘　　要：本文制备了以BDT为核心,侧链末端引入可交联的乙烯基的聚合物给体材料。采用三元共聚的合成方法,引入3%和5%含量的乙烯基片段,合成了材料CT-1和CT-2。随后基于材料自身的光电性能测试、器件活性层的形貌测试以及器件的光伏性能测试,分析了乙烯基片段的引入量与交联前后性能改变的内在联系。结果表明,适量的乙烯基交联不仅可以提升材料的稳定性,器件的光电转化效率(PCE)也得到了提高,其中CT-1与受体BTP-eC9制备的器件,其PCE达到了14%。In this paper,a polymer donor material with BDT as the core and a cross-linked vinyl group introduced at the end of the side chain was prepared.The synthetic materials CT-1 and CT-2 containing 3%and 5%vinyl segments were introduced by ternary copolymerization.Then,based on the photoelectric performance test of the material itself,the morphology test of the active layer of the device,and the photovoltaic performance test of the device,the internal reasons for the change of the vinyl segments before and after crosslinking were analyzed.The results showed that the appropriate amount of vinyl crosslinking could not only improve the material stability,but also improve the photoelectric conversion efficiency(PCE)of the device,in which the PCE of the device prepared by CT-1 and BTP-eC9 reached 14.21%.

关 键 词：点击化学 紫外交联 聚合物给体 有机太阳能电池 

分 类 号：TM914.4[电气工程—电力电子与电力传动]