H2O2-activated triplet–triplet annihilation upconversion via modulation of the fluorescence quantum yields of the triplet acceptor and the triplet–triplet-energy-transfer efficiency

Renjie Tao; Jianzhang Zhao; Fangfang Zhong; Caishun Zhang; Wenbo Yang; Kejing Xu

doi:10.1039/C5CC04325E

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H₂O₂-activated triplet–triplet annihilation upconversion via modulation of the fluorescence quantum yields of the triplet acceptor and the triplet–triplet-energy-transfer efficiency†

Renjie Tao,^a Jianzhang Zhao,*^a Fangfang Zhong,^a Caishun Zhang,^a Wenbo Yang^a and Kejing Xu^a

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* Corresponding authors

^a State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, E-208 West Campus, Dalian 116024, P. R. China
E-mail: zhaojzh@dlut.edu.cn

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.

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Article information

DOI: https://doi.org/10.1039/C5CC04325E
Article type: Communication
Submitted: 26 May 2015
Accepted: 23 Jun 2015
First published: 06 Jul 2015

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Chem. Commun., 2015,51, 12403-12406

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H₂O₂-activated triplet–triplet annihilation upconversion via modulation of the fluorescence quantum yields of the triplet acceptor and the triplet–triplet-energy-transfer efficiency

R. Tao, J. Zhao, F. Zhong, C. Zhang, W. Yang and K. Xu, Chem. Commun., 2015, 51, 12403 DOI: 10.1039/C5CC04325E

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Chemical Communications