Ming Ren, Lingyi Fang, Yuyan Zhang, Felix T Eickemeyer, Yi Yuan, Shaik M Zakeeruddin, Michael Grätzel, Peng Wang
Efficient and robust n-i-p perovskite solar cells necessitate superior organic hole-transport materials with both mechanical and electronic prowess. Deciphering the structure-property relationship of these materials is crucial for practical perovskite solar cell applications. Through direct arylation, we synthesized two high glass transition temperature molecular semiconductors, DBC-ETPA (202 °C) and TPE-ETPA (180 °C), using dibenzo[g,p]chrysene (DBC) and 1,1,2,2-tetraphenylethene (TPE) tetrabromides with triphenylene-ethylenedioxythiophene-dimethoxytriphenylamine (ETPA)...
April 17, 2024: Advanced Materials