Synthesis and Properties of Diphenylquinoxaline as Electron-Transporting Materials

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Bis-(2,3-diphenylquinoxaline) (DDPQL) has been synthesized by condensation reaction with 3,3'-diaminobenzidine and benzil. The thermal and electrical properties of DDPQL were measured as well. Organic electroluminescent device using DDPQL as electron-transporting layer was fabricated. The structure of the organic electroluminescent device is ITO/α-NPD/ Alq/DDPQL/LiF/Al. The maximum brightness of the electroluminescent device at voltage of 13.5V is 12,100cd/m², the maximum current efficiency at voltage of 13.0V is 4.97cd/A, the external quantum efficiency is 1.92%, and the lowest drive-voltage is 3.5V. This indicates that the compounds are useful as electron-transporting materials in organic electroluminescent devices.

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Periodical:

Edited by:

Chengming Li, Chengbao Jiang, Zhiyong Zhong and Yichun Zhou

Pages:

183-188

DOI:

10.4028/www.scientific.net/MSF.687.183

Citation:

T. X. Li et al., "Synthesis and Properties of Diphenylquinoxaline as Electron-Transporting Materials", Materials Science Forum, Vol. 687, pp. 183-188, 2011

Online since:

June 2011

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$35.00

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