Iridium(III) complexes with cyclometalated styrylbenzoimidazole ligands: Synthesis, electrochemistry and as highly efficient emitters for organic light-emitting diodes
β Scribed by Guanghui Zhang; Fang-Iy Wu; Xiaoqing Jiang; Peipei Sun; Chien-Hong Cheng
- Book ID
- 116899128
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 495 KB
- Volume
- 160
- Category
- Article
- ISSN
- 0379-6779
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**Two new iridium complexes with pyrazine** derivatives as ligands (see Figure) were synthesized. The electroluminescent devices based on these metal complexes emit orangeβred light at βΌβ610 nm with exceedingly high brightness and external quantum, current, and power efficiencies.
A red-emitting iridium complex (DMBA) 2 Ir(acac) (DMBA = 5,acridine, acac = acetylacetone) containing rigid cyclometalated ligand DMBA was synthesized and its photophysical, electrochemical and electroluminescent properties were characterized. Organic light emitting devices utilizing the complex as