Journal
ORGANIC ELECTRONICS
Volume 12, Issue 2, Pages 358-363Publisher
ELSEVIER
DOI: 10.1016/j.orgel.2010.12.001
Keywords
OLED; Blue emitter; Bipolar emitter
Funding
- Research Grants Council of Hong Kong [CityU 101508]
- National Natural Science Foundation of China (NSFC) [21002011, 61006036]
- Fundamental Research Funds for the Central Universities
- Research Fund for the Doctoral Program of Higher Education of China [20100185120015]
Ask authors/readers for more resources
A new multifunctional compound, 4,4'-di-(1-pyrenyl)-400-[2-(9,9'-dimethylfluorene)]-triphenylamine (DPFA) has been designed, synthesized and applied respectively as host-emitter, electron- and hole-transporters in organic light-emitting devices (OLEDs). The compound exhibits good thermal stability with a glass transition temperature (T-g) of 161 degrees C and shows blue emissions in both solution and films. OLEDs with DPFA playing various roles have been fabricated and characterized. The results show that DPFA has efficient bipolar charge transport properties for both hole and electron. By using DPFA as a blue emitter in a typical three layer device with a configuration of ITO/NPB(50 nm)/ DPFA(20 nm)/TPBI(30 nm)/LiF(0.5 nm)/MgAg, highly efficient blue emission with a maximum luminescence efficiency of 5.1 cd/A (5.3 lm/W) is obtained. (C) 2010 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available