Effect of well number on organic multiple-quantum-well electroluminescent device characteristics
- 7 December 1998
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 73 (23) , 3348-3350
- https://doi.org/10.1063/1.122765
Abstract
A doping technique for fabricating organic multiple-quantum-well electroluminescent (EL) devices is demonstrated. This device consists of N,N′-Bis(3-methyphenyl)-N,N′-diphenylbenzidine used as a hole transporter, undoped tris(8-quinolinolato) aluminum (Alq) as a barrier potential or electron transporter, and Alq doped with 5,6,11,12-tetraphenylnaphthacene as a potential well and an emitter. Our experimental results suggest that the double-quantum-well EL devices show the optimum emission characteristics. The efficiency and the luminance of the device achieve 15.7 lm/W and 7500 cd/m2, respectively.Keywords
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