Cyclic carbazole micromolecular hole transport material and synthesis method and application thereof

The invention belongs to the technical field of hole transport layers of photoelectric materials, and particularly discloses a cyclic carbazole micromolecular hole transport material and a synthesis method and application thereof. According to the cyclic carbazole small-molecule hole transport material, a carbazole unit and a thiophene unit are connected into a ring through an alkyl chain, a substituted chain of alkoxy or alkylthio is used as a side group, the molecular structure is symmetrical, and the cyclic carbazole small-molecule hole transport material has excellent hole transport capacity. The synthesis cost is low, the reaction condition is mild, and the obtained cyclic carbazole small-molecule hole transport material shows good photoelectric conversion efficiency in perovskite solar cells and has high application value in the organic photoelectric fields of organic light emitting diodes, solar cells and the like. 本发明属于光电材料的空穴传输层技术领域，具体公开了一种环状咔唑类小分子空穴传输材料及其合成方法和应用。本发明的环状咔唑类小分子空穴传输材料通过烷基链将咔唑单元和噻吩单元连接成环