钙钛矿太阳能电池中D-A-D型空穴传输材料的研究进展  

Research progress on D-A-D type hole transporting materials for perovskite solar cells

作　　者：刘小雷 侯芳 陆福泰 邓启良 LIU Xiaolei;HOU Fang;LU Futai;DENG Qiliang(College of Chemical Engineering and Materials Science,Tianjin University of Science and Technology,Tianjin 300457,China)

机构地区：[1]天津科技大学化工与材料学院,天津300457

出　　处：《精细化工》2021年第3期439-453,共15页Fine Chemicals

基　　金：国家自然科学基金(2190080961)。

摘　　要：钙钛矿太阳能电池(PSCs)由于具有快速提升的光电转换效率、制备成本低、可溶液加工等优点而获得了广泛关注。空穴传输材料(HTM)负责空穴抽取和防止电荷复合,可提高PSCs的效率和稳定性,是PSCs中的重要组成部分。线型给体-受体-给体(D-A-D)结构的有机小分子空穴传输材料的结构简单,合成难度低。另外,吸电子单元的引入可以降低最高占据分子轨道(HOMO)能级,提高材料的稳定性,而且线型D-A-D构型有利于增强分子内电荷转移,提高材料的空穴传输能力。综述了2009年以来线型D-A-D类空穴传输材料在PSCs中的应用。详细介绍了各空穴传输材料分子结构对PSCs的光电转换效率和器件稳定性等性能的影响。最后,对未来线型D-A-D型空穴传输材料的发展进行了展望。Perovskite solar cells(PSCs)have attracted wide attention due to their advantages such as rapidly improving photoelectric conversion efficiency,low fabrication cost and facile solution processing techniques.Hole transporting material(HTM)is an important component in PSCs,which is responsible for hole extraction and preventing charge recombination,can improve the performance and stability of PSCs.Organic small molecule hole transporting materials based on linear donor-acceptor-donor(D-A-D)configuration exhibit simple structure and facile synthesis.In addition,the introduction of electron withdrawing groups can low the energy level of highest occupied molecular orbital(HOMO)and improve the stability of the material.And the linear D-A-D configuration is beneficial to the enhancement of intramolecular charge transfer,which improve the hole mobility.The application of linear D-A-D hole transporting materials in PSCs is reviewed since 2009.Meanwhile,the effects of molecular structure of hole transporting materials on the photoelectric conversion efficiency and device stability of PSCs are introduced.Finally,the feature research on D-A-D HTMs is presented.

关 键 词：空穴传输材料 钙钛矿太阳能电池 光电转换效率 稳定性 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TB34[一般工业技术—材料科学与工程]