title: Novel thermally activated delayed fluorescence materials-thioxanthone derivatives and their applications for highly efficient OLEDs.
abstract: Thermally activated delayed fluorescence emitters with small energy gap between the triplet and singlet (ΔEST ), TXO-PhCz and TXO-TPA, have been successfully synthesized by combining a hole-transporting TPA/PhCz moiety and an electron-transporting TXO moiety. Both compounds display efficient solid-state luminescence with an efficient up-conversion of the triplet to singlet. OLEDs based on them exhibt high performance up to 21.5%, which is among the best reported for OLEDs.
authors.affiliation: Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.forename: Lisha
authors.initials: L
authors.lastname: Xie
authors.forename: Qian
authors.initials: Q
authors.lastname: Peng
authors.forename: Lingqiang
authors.initials: L
authors.lastname: Meng
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.forename: Yuanping
authors.initials: Y
authors.lastname: Yi
authors.forename: Pengfei
authors.initials: P
authors.lastname: Wang
keywords: aggregation-induced emission; organic light-emitting devices; solvatochromic; thermally activated delayed fluorescence; thioxanthone