Issue 57, 2016, Issue in Progress

Small organic molecules based on oxazole/thiazole with excellent performances in green and red phosphorescent organic light-emitting diodes

Abstract

Four pure organic molecules based on oxazole/thiazole were designed and characterized, and their relevant thermal, photophysical and electrochemical properties were fully investigated. These compounds (2a–2d) exhibited good thermal stabilities, with endothermic glass transitions over 120 °C, the largest of which was 2d with the endothermic glass transition of 145 °C. Four green devices, in which 2a–2d served as host materials, were fabricated and the device based on compound 2d exhibited the best performance with a maximum current efficiency of 50.7 cd A−1 and maximum power efficiency of 50.1 lm W−1. A red device based on 2d was also fabricated, which displayed a maximum current efficiency of 18.7 cd A−1 and maximum power efficiency of 17.3 lm W−1. The excellent performances of 2a–2d make them promising alternatives for efficient green and red devices.

Graphical abstract: Small organic molecules based on oxazole/thiazole with excellent performances in green and red phosphorescent organic light-emitting diodes

Supplementary files

Article information

Article type
Paper
Submitted
28 Mar 2016
Accepted
30 Apr 2016
First published
03 May 2016

RSC Adv., 2016,6, 51575-51582

Author version available

Small organic molecules based on oxazole/thiazole with excellent performances in green and red phosphorescent organic light-emitting diodes

G. Tian, X. Wei, N. Xiang, J. Huang, J. Cao, Z. Wang, J. Zhang and J. Su, RSC Adv., 2016, 6, 51575 DOI: 10.1039/C6RA07976H

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