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Efficient Hole Transporting Materials with Two or Four N,N-Di(4-methoxyphenyl)aminophenyl Arms on an Ethene Unit for
Hyeju Choi1, Kwangseok Do1, Sojin Park1
1Department of Advanced Material Chemistry, Korea University, Sejong Campus, Sejong-ro 2511, Sejong City 339-700 (Republic of Korea).
Abstract:
Novel steric bulky hole transporting materials (HTMs) with two or four N,N-di(4-methoxyphenyl)aminophenyl units have been synthesized. When the EtheneTTPA was used as a hole transporting material in perovskite solar cell, the power conversion efficiency afforded 12.77 % under AM 1.5 G illumination, which is comparable to the widely used spiro-OMeTAD based solar cell (13.28 %).
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