Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 46, 2017
Previous Article Next Article

A directly coupled dual emitting core based molecular design of thermally activated delayed fluorescent emitters

Author affiliations

Abstract

New green thermally activated delayed fluorescence (TADF) materials built on a directly coupled dual emitting core based backbone structure were designed, synthesized, and applied as green dopants in TADF devices. An ortho-linkage between a carbazole or 3,6-di-tert-butylcarbazole donor and a triazine acceptor facilitated the TADF emission, and direct coupling of the two TADF emitting cores more than doubled the external quantum efficiency of the TADF devices. The TADF emitter based on the directly coupled dual emitting core design exhibited a green emission with a CIE coordinate of (0.23, 0.52) and a maximum external quantum efficiency of 20.8% compared with less than 10% efficiency of a conventional TADF emitter with the corresponding chemical structure.

Graphical abstract: A directly coupled dual emitting core based molecular design of thermally activated delayed fluorescent emitters

Back to tab navigation

Supplementary files

Article information


Submitted
13 Jul 2017
Accepted
03 Nov 2017
First published
03 Nov 2017

J. Mater. Chem. C, 2017,5, 12143-12150
Article type
Paper

A directly coupled dual emitting core based molecular design of thermally activated delayed fluorescent emitters

H. Park, S. H. Han and J. Y. Lee, J. Mater. Chem. C, 2017, 5, 12143
DOI: 10.1039/C7TC03133E

Social activity

Search articles by author

Spotlight

Advertisements