ZnO/Cs_(2)CO_(3)双电子传输层有机太阳能电池  

Research of organic solar cells with ZnO/Cs_(2)CO_(3) as dual-electron transport layers

作　　者：何加雄 俞金玲[1] 郑巧[1] HE Jiaxiong;YU Jinling;ZHENG Qiao(College of Physics and Information Engineering,Fuzhou University,Fuzhou,Fujian 350108,China)

机构地区：[1]福州大学物理与信息工程学院,福建福州350108

出　　处：《福州大学学报（自然科学版）》2022年第2期181-186,共6页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(61704028);福建省自然科学基金资助项目(2019J01217)。

摘　　要：有机太阳能电池的异质结界面是影响其性能的一个重要因素.以氧化锌/碳酸铯作为双电子传输层,改善电子传输层与活性层的界面接触并提高电子传输能力.利用溶胶-凝胶法制备OSCs器件,通过优化的双电子传输层,使基于PTB7-Th:PC_(71)BM的OSCs器件的最高效率达到了8.08%,其相较于ZnO电子传输层器件提高了10.68%.实验表明,由于ZnO/Cs_(2)CO_(3) ETLs具有最佳的表面形貌和光吸收,其填充因子、短路电流密度和电子迁移率都显著提升.这种ZnO/Cs_(2)CO_(3)双电子传输层为OSCs性能改善提供了新的思路.The heterojunction interface of organic solar cells is an important factor affecting their performance.In this work,zinc oxide/cesium carbonate as the dual-electron transport layers to improve the interface contact and the electron transport ability between electron transport layer and the active layer.OSCs devices were fabricated by sol-gel method.With an optimized dual-electron transport layers,the highest efficiency of 8.08%for PTB7-Th:PC_(71)BM-based OSCs,which is 10.68%higher than that of ZnO electron transport layer device.Experiments show that this is because ZnO/Cs_(2)CO_(3)ETLs have the best surface morphology and light absorption,and their fill factor,short-circuit current density and electron mobility are significantly improved.This ZnO/Cs_(2)CO_(3)dual-electron transport layers provide a new way to improve the performance of OSCs.

关 键 词：有机太阳能电池 双电子传输层 氧化锌 碳酸铯 

分 类 号：O472.3[理学—半导体物理]