Synthesis and electroluminescent properties of a novel red-emitting phosphorescent iridium complex
Document Type
Article
Publication Date
2-1-2012
Abstract
A novel ancillary ligand (2-(1-hydroxy-naphthyl)-benzothiozolato) (HNBT) and the corresponding red emitting phosphorescent iridium (III) complex, Ir(ppy) 2 (NBT) with 2-pheny-lphridine (ppy) as first ligand are designed and synthesized. Saturated red-emitting electrophospho-rescent devices using Ir(ppy) 2(NBT) as emission center are fabricated. The thermal, photophysical, and electroluminescent properties of Ir(ppy) 2(NBT) are investigated in detail. It is noteworthy that the emission spectrum shape of complex Ir(ppy) 2(NBT) is similar to Gauss, which has only one emission peak centralized 614 nm with a full-width at half-maximum of 65 nm. The optimized device exhibits a maximum brightness of 6400 cd/m 2 and the peak current efficiency is 4.53 cd/A.
Publication Source (Journal or Book title)
Faguang Xuebao/Chinese Journal of Luminescence
First Page
166
Last Page
170
Recommended Citation
Zhang, L., Li, B., Liu, X., & Wang, J. (2012). Synthesis and electroluminescent properties of a novel red-emitting phosphorescent iridium complex. Faguang Xuebao/Chinese Journal of Luminescence, 33 (2), 166-170. https://doi.org/10.3788/fgxb20123302.0166