Hole-Transporting Materials Based on Twisted Bimesitylenes for Stable Perovskite Solar Cells with High Efficiency
Dr. Yan-Duo Lin, Bo-Yu Ke, Prof. Dr. Kun-Mu Lee, Dr. Sheng Hsiung Chang, Kai-Hung Wang, Shih-Han Huang, Prof. Dr. Chun-Guey Wu, Dr. Po-Ting Chou, Samik Jhulki, Prof. Dr. Jarugu Narasimha Moorthy, Prof. Dr. Yuan Jay Chang, Prof. Dr. Kang-Ling Liau, Hsin-Cheng Chung, Prof. Dr. Ching-Yang Liu, Prof. Dr. Shih-Sheng Sun and Prof. Dr. Tahsin J. Chow
Article first published online: 15 JAN 2016 | DOI: 10.1002/cssc.201501392
Stability trumps efficiency: Three hole-transport materials based on a bimesitylene core presented, and their application in perovskite solar cells is evaluated. An overall power conversion efficiency of up to 12.11 % is achieved with these new materials and stability studies show that the long-term stability of devices using the new materials is superior to commonly used spiro-OMeTAD.