Self-assembled hole transport molecule and preparation method and application thereof

The invention relates to the technical field of photoelectric energy conversion functional materials and devices, and provides a self-assembly hole transport molecule and a preparation method and application thereof, and the molecule has a dimethoxy carbazole group providing hole transport capability and a trimethoxy silylbenzene alkyl group having self-assembly capability. Compared with the prior art, the hole transport molecule provided by the invention can realize energy level arrangement with a perovskite light absorption layer and obtain higher theoretical open-circuit voltage and photoelectric conversion efficiency, and the prepared hole transport layer and the substrate have high self-assembly stability, so that the service life of the perovskite solar cell is prolonged; and the commercialization process is promoted. 本发明涉及光电能源转化功能材料与器件技术领域，提供了一种自组装空穴传输分子及其制备方法和应用，该分子具有提供空穴传输能力的二甲氧基咔唑基团和自组装能力的三甲氧基硅苯烷基团。与现有技术相比，本发明所提供的空穴传输分子能够实现与钙钛矿吸光层之间的能级排列，获得更大的理论开路电压和光电转化效率，所制备的空穴传输层与基底之间具有高自组装稳定性，有利于增加钙钛矿太阳能电池的使用寿命，