Issue 30, 2019

Red-to-blue photon up-conversion with high efficiency based on a TADF fluorescein derivative

Abstract

A new photon up-conversion system with a TADF fluorescein derivative as a photosensitizer was developed to achieve a quite large anti-Stokes shift from red to blue with a fairly high up-conversion emission quantum yield. This TADF photosensitizer has a very small ΔEST to provide a 207 nm anti-Stokes shift photon up-conversion. Meanwhile, it has a quite long triplet state lifetime (22.11 μs) and a large molar extinction coefficient to assure a high up-conversion efficiency of 11.2%. These results fully demonstrated the potential of the TADF fluorescein derivative as the photosensitizer used in photon up-conversion for the first time.

Graphical abstract: Red-to-blue photon up-conversion with high efficiency based on a TADF fluorescein derivative

Supplementary files

Article information

Article type
Communication
Submitted
07 Mar 2019
Accepted
19 Mar 2019
First published
20 Mar 2019

Chem. Commun., 2019,55, 4375-4378

Red-to-blue photon up-conversion with high efficiency based on a TADF fluorescein derivative

W. Chen, F. Song, S. Tang, G. Hong, Y. Wu and X. Peng, Chem. Commun., 2019, 55, 4375 DOI: 10.1039/C9CC01868A

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