用于钙钛矿太阳能电池的噻吩衍生物空穴传输材料的合成与表征

Synthesis and Characterization of Thiophene Derivative Hole-Transport Materials

本文设计合成了一种噻吩衍生物空穴传输材料,用于制备钙钛矿太阳能电池中的空穴传输层.利用核磁共振氢谱和碳谱对合成的目标产物进行了结构表征,并通过紫外-可见光谱、荧光光谱、伏安曲线、热重分析与玻璃化转变温度研究了目标产物的光电性能和热稳定性能.实验证明,合成的噻吩衍生物空穴传输材料工艺简单、价格低廉,具有良好的热稳定性,能级能与钙钛矿材料匹配,组装成的钙钛矿太阳能电池的光电转化效率为11.835%,能较好地满足空穴传输材料的性能要求,是一种较为理想的空穴传输材料.

A kind of thiophene derivative hole-transport material containing triphenylamine unit have been designed and synthesized in this paper and it can be used in perovskite solar cells.The structure of this compound has been characterized by the1H NMR and13C NMR.Meanwhile,the target product’s UV-Vis spectrum,fluorescence spectrum,electrochemical property and thermo-stability were studied.Then we compared the target product’s properties with Spiro-OMeTAD,the results of experiment proves that the target product can satisfy the requirements of the hole-transport materials.Finally,we used this kind of thiophene derivative hole-transport material to assemble perovskite solar cell,and we found that the battery photoelectric conversion efficiency has arrived11.835%.The results indicated that this kind of thiophene hole-transport material can be served as an ideal hole-transport material.