title: H2O2-activated triplet-triplet annihilation upconversion via modulation of the fluorescence quantum yields of the triplet acceptor and the triplet-triplet-energy-transfer efficiency.
abstract: Oxidation-activatable triplet–triplet annihilation (TTA) upconversion was achieved with 9,10-bis(diphenylphosphino)-anthracene (BDPPA, nonfluorescent) as an activatable triplet acceptor/emitter, which can be oxidized to BDPPA-O (highly fluorescent) by H2O2 under mild conditions, and thus TTA upconversion was switched on by H2O2.
authors.affiliation: State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, Dalian 116024, P. R. China. zhaojzh@dlut.edu.cn.
authors.forename: Renjie
authors.initials: R
authors.lastname: Tao
authors.forename: Jianzhang
authors.initials: J
authors.lastname: Zhao
authors.forename: Fangfang
authors.initials: F
authors.lastname: Zhong
authors.forename: Caishun
authors.initials: C
authors.lastname: Zhang
authors.forename: Wenbo
authors.initials: W
authors.lastname: Yang
authors.forename: Kejing
authors.initials: K
authors.lastname: Xu