基于双修饰策略制备高性能反式钙钛矿太阳能电池  

Fabrication of high-performance inverted perovskite solar cells based on dual modification strategy

作　　者：张晓春 王立坤 商文丽 万政慧 岳鑫 杨华翼 李婷 王辉 Zhang Xiao-Chun;Wang Li-Kun;Shang Wen-Li;Wan Zheng-Hui;Yue Xin;Yang Hua-Yi;Li Ting;Wang Hui(School of Physics and Electronic Techonlogy,Liaoning Normal Unversity,Dalian 116029,China;School of Microelectronics,Xidian University,Xi’an 710071,China;Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China;Dalian University of Science and Technology,Dalian 116025,China)

机构地区：[1]辽宁师范大学物理与电子技术学院,大连116029 [2]西安电子科技大学微电子学院,西安710071 [3]中国科学院大连化学物理研究所,大连116023 [4]大连科技学院实验实训中心,大连116025

出　　处：《物理学报》2024年第24期238-248,共11页Acta Physica Sinica

基　　金：辽宁省科技厅博士启动基金(批准号:2021-BS-200)资助的课题.

摘　　要：反式(p-i-n)钙钛矿太阳能电池(PSCs)因其具有转化效率高、稳定性好等优点受到越来越多的关注.制约反式钙钛矿电池效率提升的主要因素是钙钛矿层和电荷传输层之间的界面缺陷.因此,本文基于1,3-二氨基丙烷二氢碘(PDADI)双修饰策略钝化钙钛矿薄膜与电荷传输层界面缺陷,提高了钙钛矿薄膜成膜质量,抑制了钙钛矿薄膜与电荷传输层之间的非辐射复合,制备了转化效率为23.19%的反式钙钛矿太阳能电池,为制备高效反式钙钛矿太阳能电池提供了一种有效策略.Inverted(p-i-n)perovskite solar cells(PSCs)are receiving increasing attention due to their high conversion efficiency and good stability.The main factor restricting the efficiency improvement of inverted perovskite cells is the interface defect between the perovskite layer and the charge transport layers.Therefore,the dual modification strategy of 1,3-diaminopropane dihydroiodide(PDADI)passivates the interface defects between perovskite films and charge transport layers,improves the quality of perovskite film formation,suppresses non radiative recombination between perovskite films and charge transport layers as well as improved charge carrier transport,and results in a conversion efficiency of 23.19%.Furthermore,the unencapsulated PSCs with PDADI dual modification also exhibit good storage stability,with efficiency remaining at 96%of initial efficiency after 600 hours of storage at a temperature of 25℃and humidity below 20%.Therefore,PDADI dual modification provides an effective strategy for fabricating high-efficiency and stable inverted perovskite solar cells.

关 键 词：反式 钙钛矿太阳能电池 缺陷钝化 1 3-二氨基丙烷二氢碘 

分 类 号：TM914.4[电气工程—电力电子与电力传动]