title: Efficient Hole Transporting Materials with Two or Four N,N-Di(4-methoxyphenyl)aminophenyl Arms on an Ethene Unit for Perovskite Solar Cells.
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 %).
authors.affiliation: Department of Advanced Material Chemistry, Korea University, Sejong Campus, Sejong-ro 2511, Sejong City 339-700 (Republic of Korea).
authors.forename: Hyeju
authors.initials: H
authors.lastname: Choi
authors.affiliation: Department of Advanced Material Chemistry, Korea University, Sejong Campus, Sejong-ro 2511, Sejong City 339-700 (Republic of Korea).
authors.forename: Kwangseok
authors.initials: K
authors.lastname: Do
authors.affiliation: Department of Advanced Material Chemistry, Korea University, Sejong Campus, Sejong-ro 2511, Sejong City 339-700 (Republic of Korea).
authors.forename: Sojin
authors.initials: S
authors.lastname: Park
authors.affiliation: Department of Energy Systems Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 711-873 (Republic of Korea).
authors.forename: Jong-Sung
authors.initials: JS
authors.lastname: Yu
authors.affiliation: Department of Advanced Material Chemistry, Korea University, Sejong Campus, Sejong-ro 2511, Sejong City 339-700 (Republic of Korea). jko@korea.ac.kr.
authors.forename: Jaejung
authors.initials: J
authors.lastname: Ko
keywords: hole transporting materials; organic-inorganic hybrid composites; perovskite; photochemistry; solar cells