Recently, coupling agents have gradually been applied to perovskite solar cells (PSC) due to their interface modification properties. In this work, Ti₃C₂T_x MXene nanosheets with different amounts of silane coupling agent vinyltris (2-methoxyethoxylsilane) (SCA) (0, 0.1, 0.3, 0.5, and 0.7 V/V%) were deposited by spray technique as the hole transport layer (HTL). Taking the advantage of SCA, the interface distribution of Ti₃C₂T_x after film formation is effectively modulated, while flat, pin-hole free Ti₃C₂T_x films were obtained with a mixing content of 0.3 V/V%. Superior hole transfer path, enhanced hole extraction, and reduced transfer resistance at the HTL/perovskite interface were achieved due to the better formation of Ti₃C₂T_x films, thus leading to an increase in power conversion efficiency (PCE) from 11.12% to 13.65%. This work represents an effective method to improve the quality of Ti₃C₂T_x-based films and provides more possibilities for future research on Ti₃C₂T_x MXene.

最近，由于其界面改性特性，偶联剂已逐渐应用于钙钛矿太阳能电池（PSC）。在这项工作中，具有不同量的硅烷偶联剂乙烯基三（2-甲氧基乙氧基硅烷）（SCA）（0、0.1、0.3、0.5 和 0.7 V/V%）的Ti ₃ C ₂ T _x MXene 纳米片通过喷涂技术沉积为空穴传输层（HTL）。利用SCA的优势，有效调节成膜后Ti ₃ C ₂ T _x的界面分布，同时平坦、无针孔的Ti ₃ C ₂ T _x获得混合含量为 0.3 V/V% 的薄膜。由于 Ti ₃ C ₂ T _x薄膜的更好形成，实现了优异的空穴传输路径、增强的空穴提取和降低的 HTL/钙钛矿界面的传输电阻，从而使功率转换效率 (PCE) 从 11.12% 提高到 13.65%。这项工作代表了一种提高 Ti ₃ C ₂ T _x基薄膜质量的有效方法，并为未来 Ti ₃ C ₂ T _x MXene 的研究提供了更多可能性。