Title :
Very bright and efficient OLED based on hexaphenylsilole
Author :
Chen, Haiying ; Chen, Junwu ; Qiu, Chengfeng ; Tan, Benzhong ; Wong, Man ; Kwok, Hoi-Sing
Author_Institution :
Center for Display Res., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Abstract :
OLED devices based on hexaphenylsilole (HPS) have been fabricated. These devices emit very bright greenish-blue light, up to 55880 cd/m2 at 16 V. Emission starts at 2.6 V, and reaches 100-cd/m2 and 10790-cd/m2 at 5 V and 10 V respectively. The maximum electroluminescence (EL) efficiency and power efficiency are 20-cd/A and 12.8-lm/W, respectively. The maximum external quantum efficiency is 7%.
Keywords :
LED displays; brightness; electroluminescence; optical fabrication; organic light emitting diodes; organic semiconductors; semiconductor device testing; silicon compounds; 10 V; 16 V; 2.6 V; 5 V; 7 percent; OLED; electroluminescence; greenish-blue light emission; hexaphenylsilole; power efficiency; quantum efficiency; Brightness; Chemicals; Crystalline materials; Doping; Flat panel displays; Glass; Indium tin oxide; Liquid crystal displays; Organic light emitting diodes; Silicon;
Conference_Titel :
Optoelectronics, Proceedings of the Sixth Chinese Symposium
Print_ISBN :
0-7803-7887-3
DOI :
10.1109/COS.2003.1278197