Quantum well organic light emitting diodes with ultra thin Rubrene layer

Yumeng Shi, Zhen bo Deng*, Deng hui Xu, Zheng Chen, Xiu fang Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Organic light-emitting diodes with ultra thin Rubrene layer have been fabricated with the structure of ITO/hole-transport layer/Rubrene/AlQ/LiF/Al. The hole-transport layer are copper phthalocyanine (CuPc), poly(3,4-ethylenedioxythiophene) doped with polystrenesulphonic acid (PEDOT: PSS), poly(N-vinyl carbazole) (PVK), and N,N′-diphenyl-N,N′-bis(1,1′-biphenyl)-4,4′-diamine (NPB), respectively. Compared with the other two devices, when 5,6,11,12-tetraphenylnaphthacene (Rubrene) is inserted between PVK (or NPB) and tris(8-quinolinolato)aluminum (AlQ), Rubrene's emission get enhanced. The energy transfer mechanism among PVK (NPB), AlQ and Rubrene are revealed by the absorption and emitting spectra. Moreover, the enhancement of Rubrene's emission can also be ascribed as an organic quantum well structure's trap effection.

Original languageEnglish (US)
Pages (from-to)97-100
Number of pages4
JournalDisplays
Volume28
Issue number2
DOIs
StatePublished - Apr 1 2007

Keywords

  • OLEDs
  • Quantum well
  • Rubrene

ASJC Scopus subject areas

  • Human-Computer Interaction
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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