Visible Light Activated Organic Room-Temperature Phosphorescence Based on Triplet-to-Singlet Förster-Resonance Energy Transfer

Yunhan Zhao, Liangwei Ma, Zizhao Huang, Junji Zhang, Itamar Willner, Xiang Ma*, He Tian

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

Stimuli-responsive room-temperature phosphorescence (RTP) materials have drawn widespread attention in information encryption, sensors, and bio-imaging. In this work, a photoactivated organic RTP material through triplet-to-singlet Förster-resonance energy transfer (TS-FRET) inhibited by visible-light stimulation is reported. A stable phosphorescence energy donor and a fluorescent dye sensitive to visible light as the energy acceptor are doped into polyvinylpyrrolidone (PVP) polymer matrix to construct an amorphous organic RTP system. Due to the photodegradation characteristic of the energy acceptor, the phosphorescence intensity of the energy donor increases visually upon irradiation with visible light. This study provides a novel strategy to design stimuli-responsive organic RTP materials.

Original languageEnglish
Article number2102701
JournalAdvanced Optical Materials
Volume10
Issue number8
DOIs
StatePublished - 19 Apr 2022

Bibliographical note

Publisher Copyright:
© 2022 Wiley-VCH GmbH.

Keywords

  • organic room-temperature phosphorescence
  • photodegradation
  • triplet-to-singlet Förster-resonance energy transfer
  • visible-light stimulation

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