| dc.description.abstract | Materials are the foundation for human survival and the development of civilization. With the rapid development of science and technology, people’s reliance on new materials is also increasing, which makes the development of new materials gradually get more attention. Among them, the development of organic optoelectronic materials attracts the most attention. Due to its lightness, thinness and shortness, flexibility and variable materials, it has been widely used in electronic products such as mobile phones and TV screens that can be seen in daily life, and has great potential for development.
Recently, we find a D−π−π−D type linear organic small molecules, which have an excellent performance when it work as Light-emitter and hole-transporting Materials. However, most of them are synthesized by the traditional name reaction that requires not only tedious synthetic step but also using dangerous strong base and non-ecofriendly organometal reagent. Therefore, we report a new high efficiency two-step synthetic route via direct C-H arylation and homo-coupling to synthesize a series of D−π−π−D type linear oligo(hetero)aryl materials, which effectively shorten the synthesis steps and improve the disadvantages of traditional synthesis method.
In this work, We used low cost copper as catalyst and optimized the reaction conditions of copper-catalyzed direct C-H arylation by screening different kinds of temperature, ligand, base and the solvent. Finally we used this copper-catalyzed direct C-H arylation and homo- coupling synthesize HMT01-08, Finally we measured their thermal properties, photovoltaic, and electrochemical characteristics. And use it as a hole transport material in the perovskite solar cell to investigate the efficiency of its components. | en_US |