High-brightness organic double-quantum-well electroluminescent devices

Jingsong Huang*, Kaixia Yang, Shiyong Liu, Hongjin Jiang

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

52 Citations (Scopus)

Abstract

An organic double-quantum-well structure electroluminescent device fabricated by a doping method is demonstrated. The device consists of N,N′-bis-(1-naphthl)-N,N′-diphenyl-1,1′-biphenyl-4,4′- diamine (NPB) 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 (rubrene) as a potential well and emitter, and has the following structure: indium tin oxide/NPB/ Alq:rubrene/Alq/Alq:rubrene/Alq/Mg/Al. The maximum brightness and efficiency reach 48000 cd/m2 and 4.59 lm/W, respectively. The present double-quantum-well structure device shows higher brightness and higher efficiency than those of the common heterostructure devices.

Original languageEnglish
Pages (from-to)1750-1752
Number of pages3
JournalApplied Physics Letters
Volume77
Issue number12
DOIs
Publication statusPublished - 18 Sept 2000
Externally publishedYes

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