Organic quantum well EL device with a novel characteristic

Kaixia Yang; Shiyong Liu

doi:10.1117/12.444978

19 October 2001 Organic quantum well EL device with a novel characteristic

Kaixia Yang, Shiyong Liu

Proceedings Volume 4580, Optoelectronics, Materials, and Devices for Communications; (2001) https://doi.org/10.1117/12.444978
Event: Asia-Pacific Optical and Wireless Communications Conference and Exhibit, 2001, Beijing, China

Abstract

An organic quantum-well structure electroluminescent device is fabricated by a doping method. The quantum-well structure consists of (formula available in paper) as potential well and emitter, undoped NPB as a barrier potential. Compared with a conventional doping structure device, both the maximum brightness and electroluminescent (EL) efficiency of the device are enhanced, reaching 40 000 cd/m2 and 5.6 cd/A, respectively. Especially, with the increase of the drive voltage, the EL efficiency (cd/A), after reaching its maximum, declines very slowly, almost independent of the drive voltage in a wide range from 5V to 13V. The characteristic may be useful in improving the lifetime of the device.

Citation Download Citation

Kaixia Yang and Shiyong Liu "Organic quantum well EL device with a novel characteristic", Proc. SPIE 4580, Optoelectronics, Materials, and Devices for Communications, (19 October 2001); https://doi.org/10.1117/12.444978

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