Issue 27, 2013

Highly efficient green organic light emitting diode with a novel solution processable iridium complex emitter

Abstract

We demonstrate a high-efficiency green organic light-emitting diode (OLED) with a solution-processed emissive layer composed of a novel green light emitting iridium complex, bis [5-methyl-8-trifluoromethyl-5H-benzo(c) (1,5)naphthyridin-6-one]iridium(pyrazinecarboxylate). By coupling with a proper host, the green device shows at 1000 cd m−2 an external quantum efficiency of 23.8%, current efficiency of 95.6 cd A−1, and efficacy of 60.8 lm W−1, the highest among all reported OLEDs with a solution-processed emissive layer. The high efficiency may be attributed to the host possessing a zero electron injection barrier, resulting in a more balanced carrier-injection.

Graphical abstract: Highly efficient green organic light emitting diode with a novel solution processable iridium complex emitter

Article information

Article type
Paper
Submitted
02 Apr 2013
Accepted
30 Apr 2013
First published
01 May 2013

J. Mater. Chem. C, 2013,1, 4201-4208

Highly efficient green organic light emitting diode with a novel solution processable iridium complex emitter

J. Jou, C. Li, S. Shen, S. Peng, Y. Chen, Y. Jou, J. H. Hong, C. Chin, J. Shyue, S. Chen, J. Li, P. Wang and C. Chen, J. Mater. Chem. C, 2013, 1, 4201 DOI: 10.1039/C3TC30606B

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