Issue 48, 2017
From the journal:

Journal of Materials Chemistry C

A red thermally activated delayed fluorescence material as a triplet sensitizer for triplet–triplet annihilation up-conversion with high efficiency and low energy loss†

Danqing Wei,a   Fan Ni,a   Zece Zhu,c   Yang Zoub  and  Chuluo Yang ORCID logo *ab  

* Corresponding authors

a Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Department of Chemistry, Wuhan University, Wuhan, People's Republic of China
E-mail: clyang@whu.edu.cn

b Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen, People's Republic of China

c Wuhan National Laboratory for Optoelectronics & School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China

Abstract

Taking advantage of the active and low-lying triplet state, a red thermally activated delayed fluorecence (TADF) molecule has been employed as a sensitizer to realize green-to-blue up-conversion (UC) emission with a large anti-Stokes shift of 97 nm and high ΦUC′ of 1.9%. Noteworthily, the UC emission is obviously observed even in air, which provided an opportunity for biological imaging and energy applications of triplet–triplet annihilation up-conversion (TTA-UC) materials in oxygenic environments.

Graphical abstract: A red thermally activated delayed fluorescence material as a triplet sensitizer for triplet–triplet annihilation up-conversion with high efficiency and low energy loss

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Article information

DOI
https://doi.org/10.1039/C7TC04096B
Article type
Communication
Submitted
07 Sep 2017
Accepted
28 Nov 2017
First published
28 Nov 2017

J. Mater. Chem. C, 2017,5, 12674-12677

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A red thermally activated delayed fluorescence material as a triplet sensitizer for triplet–triplet annihilation up-conversion with high efficiency and low energy loss

D. Wei, F. Ni, Z. Zhu, Y. Zou and C. Yang, J. Mater. Chem. C, 2017, 5, 12674 DOI: 10.1039/C7TC04096B

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