Issue 27, 2016
From the journal:

Journal of Materials Chemistry C

Increased vis-to-UV upconversion performance by energy level matching between a TADF donor and high triplet energy acceptors†

Nobuhiro Yanai,*ab   Mariko Kozue,a   Shogo Amemori,a   Ryota Kabe,c   Chihaya Adachic  and  Nobuo Kimizuka*a  

* Corresponding authors

a Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
E-mail: yanai@mail.cstm.kyushu-u.ac.jp, n-kimi@mail.cstm.kyushu-u.ac.jp

b PRESTO, JST, Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan

c Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Fukuoka 819-0395, Japan

Abstract

A question at issue in triplet–triplet annihilation-based photon upconversion (TTA-UC) has been how to maximize the anti-Stokes shift, which requires minimization of the energy losses in intersystem crossing (ISC) of donors and consequent energy transfer (TTET) to acceptors. This is resolved by the energy level matching between a thermally activated delayed fluorescence (TADF) sensitizer and emitters with the highest triplet and singlet energy levels.

Graphical abstract: Increased vis-to-UV upconversion performance by energy level matching between a TADF donor and high triplet energy acceptors

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Article information

DOI
https://doi.org/10.1039/C6TC01816E
Article type
Communication
Submitted
04 May 2016
Accepted
22 May 2016
First published
23 May 2016

J. Mater. Chem. C, 2016,4, 6447-6451

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Increased vis-to-UV upconversion performance by energy level matching between a TADF donor and high triplet energy acceptors

N. Yanai, M. Kozue, S. Amemori, R. Kabe, C. Adachi and N. Kimizuka, J. Mater. Chem. C, 2016, 4, 6447 DOI: 10.1039/C6TC01816E

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