High efficiency thermally activated delayed fluorescence based on 1,3,5-tris(4-(diphenylamino)phenyl)-2,4,6-tricyanobenzene

Masatsugu Taneda; Katsuyuki Shizu; Hiroyuki Tanaka; Chihaya Adachi

doi:10.1039/c5cc00511f

High efficiency thermally activated delayed fluorescence based on 1,3,5-tris(4-(diphenylamino)phenyl)-2,4,6-tricyanobenzene

Chem Commun (Camb). 2015 Mar 25;51(24):5028-31. doi: 10.1039/c5cc00511f.

Authors

Masatsugu Taneda¹, Katsuyuki Shizu, Hiroyuki Tanaka, Chihaya Adachi

Affiliation

¹ Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, 744 Motooka, Nishi, Fukuoka 819-0395, Japan. adachi@cstf.kyushu-u.ac.jp.

PMID: 25705974
DOI: 10.1039/c5cc00511f

Abstract

A trigonal donor-acceptor molecule of 1,3,5-tris(4-(diphenylamino)phenyl)-2,4,6-tricyanobenzene (3DPA3CN) was synthesized to exhibit efficient thermally activated delayed fluorescence. By doping 3DPA3CN into a wide energy gap host, the film had a photoluminescence quantum efficiency of 100% with the reverse intersystem crossing efficiency of 100%. An OLED including the emitter exhibited a very high external quantum efficiency (η(EQE)) of 21.4%.