Proceedings of International Conference on Perovskite and Organic Photovoltaics and Optoelectronics (IPEROP19)
Publication date: 23rd October 2018
Perovskite solar cells (PSCs) have attracted considerable attention for their great potential as a new generation of photovoltaics. A typical PSC consists of five fundamental components: FTO-glass, compact TiO2, mesoporous TiO2, perovskite (CH3NH3PbI3), hole transport material (spiro-OMeTAD), and counter electrode (Au). In order to improve the efficiency of PSCs, it is necessary to reduce the energy losses at material interfaces in the cells. For this point of view, there have been several reports that examined the interfacial modification between perovskite and hole transport material.[1-4]
Recently, we have synthesized new series of tirphenylamine derivatives as a materials for the interfacial modification of perovskite/hole transport mateial in PSCs. These materials have both triphenylamine moiety and interaction moiety toward perovskite. It was found that the structure and substitutional position of interaction moiety had a significant effect on the performance of PSCs. In order to improve the efficiency of PSCs containing this type of materials, we have investigated the substituent effect of triphenylamine moiety. In this work, we synthesized triphenylamine derivatives with metoxy or hexyloxy group. The experimental detailes and photovoltaic responces of the PSCs containing these materils will be presented.
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) of Japan.
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