Room Temperature Phosphorescence Emission From Multi-States.

Front Chem

Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin, China.

Published: February 2022

AI Article Synopsis

  • Organic room temperature phosphorescence (RTP) materials are gaining interest for their unique properties, particularly organic luminogens that emit RTP in solid forms.
  • In this study, two fluorene derivatives were discovered to exhibit RTP emission in degassed organic solvents, polymer-doped films, and crystalline states, showing versatility.
  • These luminogens emitted different colors and had varying phosphorescence lifetimes across multiple states, marking a significant advance as it's the first report on diverse organic RTP in solution as well.

Article Abstract

Organic room temperature phosphorescence (RTP) materials have received considerable attention due to their fascinating photophysical properties. During the past decade, various organic luminogens exhibiting RTP emission in solid states were reported. However, the phosphorescence emission of organic compounds can hardly be observed in their solutions at room temperature. Herein, we reported two fluorene derivatives that can emit RTP in degassed organic solvents, polymer doped film, and crystalline states. Furthermore, those RTP luminogens emitted different colors with different phosphorescence lifetimes in multi-states. These results indicated that the phosphorescence performance can be adjusted flexibly in different condensed states. To our knowledge, this is the first example possessing diverse organic RTP at multi-states, including solution state.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8847601PMC
http://dx.doi.org/10.3389/fchem.2021.810458DOI Listing

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