title: Tetraphenylmethane-Arylamine Hole-Transporting Materials for Perovskite Solar Cells.
abstract: A new class of hole-transporting materials (HTM) containing tetraphenylmethane (TPM) core have been developed. After thermal, charge carrier mobility, and contact angle tests, it was found that TPA-TPM (TPA: arylamine derivates side group) showed higher glass-transition temperature and larger water-contact angle than spiro-OMeTAD with comparable hole mobility. Photoluminescence and impedance spectroscopy studies indicate that TPA-TPM's hole-extraction ability is comparable to that of spiro-OMeTAD. SEM and AFM results suggest that TPA-TPM has a smooth surface. When TPA-TPM is used in mesoscopic perovskite solar cells, power conversion efficiency comparable to that of spiro-OMeTAD is achieved. Notably, the perovskite solar cells employing TPA-TPM show better long-term stability than that of spiro-OMeTAD. Moreover, TPA-TPM can be prepared from relatively inexpensive raw materials with a facile synthetic route. The results demonstrate that TPM-arylamines are a new class of HTMs for efficient and stable perovskite solar cells.
authors.affiliation: Key Laboratory of Novel Thin-film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230088, P.R. China.|University of Science and Technology of China, Hefei, 230026, P.R. China.
authors.forename: Xuepeng
authors.initials: X
authors.lastname: Liu
authors.affiliation: Key Laboratory of Novel Thin-film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230088, P.R. China.
authors.forename: Fantai
authors.initials: F
authors.lastname: Kong
authors.affiliation: Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, P.R. China.
authors.forename: Tai
authors.initials: T
authors.lastname: Cheng
authors.affiliation: Key Laboratory of Novel Thin-film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230088, P.R. China.|University of Science and Technology of China, Hefei, 230026, P.R. China.
authors.forename: Wangchao
authors.initials: W
authors.lastname: Chen
authors.affiliation: Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, P.R. China.
authors.forename: Zhan'ao
authors.initials: Z
authors.lastname: Tan
authors.affiliation: Key Laboratory of Novel Thin-film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230088, P.R. China.|University of Science and Technology of China, Hefei, 230026, P.R. China.
authors.forename: Ting
authors.initials: T
authors.lastname: Yu
authors.affiliation: Key Laboratory of Novel Thin-film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230088, P.R. China.
authors.forename: Fuling
authors.initials: F
authors.lastname: Guo
authors.affiliation: Key Laboratory of Novel Thin-film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230088, P.R. China.
authors.forename: Jian
authors.initials: J
authors.lastname: Chen
authors.affiliation: Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, P.R. China.
authors.forename: Jianxi
authors.initials: J
authors.lastname: Yao
authors.affiliation: Key Laboratory of Novel Thin-film Solar Cells, Institute of Applied Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230088, P.R. China.|Beijing Key Laboratory of Novel Thin-Film Solar Cells, North China Electric Power University, Beijing, 102206, P.R. China.
authors.forename: Songyuan
authors.initials: S
authors.lastname: Dai
mesh_terms: D000588:Amines / Q000737:chemistry*; D017610:Calcium Compounds / Q000737:chemistry*; D011211:Electric Power Supplies; D008697:Methane / Q000031:analogs & derivatives* / Q000737:chemistry; D010087:Oxides / Q000737:chemistry*; D012993:Solar Energy; D013730:Terphenyl Compounds / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*
chemical_list: D000588:Amines; D017610:Calcium Compounds; D010087:Oxides; D013730:Terphenyl Compounds; C517711:tetraphenylmethane; C059910:perovskite; D014025:Titanium; D008697:Methane
keywords: arylamine; hole-transporting materials; perovskite solar cell; power conversion efficiency; tetraphenylmethane