%0 Journal Article %A Chen, Song %A Liu, Peng %A Hua, Yong %A Li, Yuanyuan %A Kloo, Lars %A Wang, Xingzhu %A Ong, Beng %A Wong, Wai-Kwok %A Zhu, Xunjin %D 2017 %T Study of Arylamine-Substituted Porphyrins as Hole-Transporting Materials in High-Performance Perovskite Solar Cells %U https://acs.figshare.com/articles/journal_contribution/Study_of_Arylamine-Substituted_Porphyrins_as_Hole-Transporting_Materials_in_High-Performance_Perovskite_Solar_Cells/4815094 %R 10.1021/acsami.7b01904.s001 %2 https://acs.figshare.com/ndownloader/files/7979212 %K power conversion efficiency %K electrochemical stability %K organometallic halide PSCs %K ZnP show %K metal centers %K PCE %K photovoltaic performances %K gram scale %K Arylamine-Substituted Porphyrins %K hole-transporting materials %K porphyrin-based HTMs %K hole extraction %K Hole-Transporting Materials %K hole mobility %K High-Performance Perovskite Solar Cells %X To develop new hole-transporting materials (HTMs) for efficient and stable perovskite solar cells (PSCs), 5,10,15,20-tetrakis­{4-[N,N-di­(4-methoxylphenyl)­amino-phenyl]}-porphyrin was prepared in gram scale through the direct condensation of pyrrole and 4-[bis­(4-methoxyphenyl)­amino]­benzaldehyde. Its Zn­(II) and Cu­(II) complexes exhibit excellent thermal and electrochemical stability, specifically a high hole mobility and very favorable energetics for hole extraction that render them a new class of HTMs in organometallic halide PSCs. As expected, ZnP as HTM in PSCs affords a competitive power conversion efficiency (PCE) of 17.78%, which is comparable to that of the most powerful HTM of Spiro-MeOTAD (18.59%) under the same working conditions. Meanwhile, the metal centers affect somewhat the photovoltaic performances that CuP as HTM produces a lower PCE of 15.36%. Notably, the PSCs employing ZnP show a much better stability than Spiro-OMeTAD. Moreover, the two porphyrin-based HTMs can be prepared from relatively cheap raw materials with a facile synthetic route. The results demonstrate that ZnP and CuP can be a new class of HTMs for efficient and stable PSCs. To the best of our knowledge, this is the best performance that porphyrin-based solar cells could show with PCE > 17%. %I ACS Publications