钙钛矿太阳能电池中Spiro-OMeTAD空穴传输材料掺杂调控策略的研究进展-中国材料进展

文章信息/Info

Title:: Research Progress on Doping Strategies of Spiro-OMeTAD Hole Transport Materials in Perovskite Solar Cells

Author(s):: SHEN Yifei; CHENG Wenjie; HUANG Xinpei; YANG Li; ZHANG Jinbao; College of Materials, Xiamen University, Xiamen 361005, China

Keywords:: perovskite solar cells; hole transport layer; Spiro-OMeTAD; chemical doping

摘要:: 近年来，钙钛矿太阳能电池的光电转换效率已突破27%，但其进一步发展仍受限于器件寿命短、工艺重复性不佳、规模化应用困难等瓶颈。作为主流空穴传输材料，化学掺杂型2,2′,7,7′-四[N,N-二(4-甲氧基苯基)氨基]-9,9′-螺二芴（Spiro-OMeTAD）吸湿特性显著、环境稳定性薄弱，极大制约了钙钛矿器件的长期工作稳定性与使用可靠性。因此，开发兼具高电导率与优异稳定性的改性Spiro-OMeTAD空穴传输材料已成为该领域的研究热点。首先阐述了Spiro-OMeTAD的结构特点与固有性能缺陷，系统总结了Spiro-OMeTAD化学掺杂改性领域的最新研究进展，涵盖掺杂作用机理、传统掺杂体系以及新型掺杂调控策略，为优化Spiro-OMeTAD光电性能和长期稳定性提供理论与技术参考，助力高效率、长寿命钙钛矿太阳能电池的产业化发展。

Abstract:: In recent years, the power conversion efficiency of perovskite solar cells has exceeded 27%. Nevertheless, its further development remains hindered by several bottlenecks, including short device lifespan, poor processing reproducibility and challenges in largescale application. As a mainstream hole transport material, chemically doped 2,2′,7,7′-tetrakis[N,N-di(4methoxyphenyl)amino]-9,9′-spirobifluorene (Spiro-OMeTAD) suffers from strong hygroscopicity and inferior environmental stability, which severely limits the long-term operational stability and service reliability of perovskite devices. Accordingly, the development of modified Spiro-OMeTAD hole transport materials with high electrical conductivity and excellent stability has become a research hotspot in this field. This paper first elaborates on the structural characteristics and inherent drawbacks of Spiro-OMeTAD, and systematically summarizes the latest research advances in chemical doping modification of Spiro-OMeTAD, including doping mechanisms, conventional doping systems and novel alternative doping strategies. It provides theoretical and technical references for optimizing the optoelectronic properties and stability of SpiroOMeTAD, and facilitates the industrialization of high-efficiency and longlifetime perovskite solar cells.