Chinese Journal of Liquid Crystals and Displays, Volume. 34, Issue 12, 1136(2019)
High-efficiency long-life blue organic electro-luminescent diode based on 13,13-dimethyl-N,N- di-p-tolyl-13H-indeno[1,2-b]anthracen-2-amine
Organic electroluminescent blue light devices still have some problems, such as low efficiency and unsatisfactory operating lifetime. In order to achieve high efficiency long life blue light devices, a novel blue fluorescent luminescent material was obtained by 13,13-dimethyl-13H-indeno[1,2-b]anthracene connect Di-p-tolyl-amine. By device optimization it can achieve a current efficiency of 10.2 cd/A and a flatter efficiency roll-off. The peak spectrum was 462 nm, CIE (0.15, 0.17). The operating lifetime of the devices were tested at a constant current density of 10 mA/cm2 at room temperature. The device with this material as a blue light material reached a lifetime of 329 h, which was nearly twice as long as the lifetime of the reference device BCzVBi (169 h). The results show that the material can realize high-efficiency long-lifetime blue organic electroluminescent devices, especially for potential application of high-performance white organic light-emitting diodes and full-color display devices.
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ZHANG Hong-ke, SUN Jun, YANG Dan-dan, TIAN Mi, HE Hai-xiao, LIU Kai-peng, LI Jiang-nan, CAI Liang, HE Min. High-efficiency long-life blue organic electro-luminescent diode based on 13,13-dimethyl-N,N- di-p-tolyl-13H-indeno[1,2-b]anthracen-2-amine[J]. Chinese Journal of Liquid Crystals and Displays, 2019, 34(12): 1136
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Received: Jun. 17, 2019
Accepted: --
Published Online: Jan. 9, 2020
The Author Email: SUN Jun (jsunoel@126.com)