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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 5 — Feb. 28, 2011
  • pp: 4513–4520

Improved performance of organic light-emitting diodes with MoO3 interlayer by oblique angle deposition

S.W. Liu, Y. Divayana, X.W. Sun, Y. Wang, K.S. Leck, and H.V. Demir  »View Author Affiliations

Optics Express, Vol. 19, Issue 5, pp. 4513-4520 (2011)

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We fabricated and demonstrated improved organic light emitting diodes (OLEDs) in a thin film architecture of indium tin oxide (ITO)/ molybdenum trioxide (MoO3) (20 nm)/ N,N’-Di(naphth-2-yl)-N,N’-diphenyl-benzidine (NPB) (50 nm)/ tris-(8-hydroxyquinoline) (Alq3) (70 nm)/ Mg:Ag (200 nm) using an oblique angle deposition technique by which MoO3 was deposited at oblique angles (θ) with respect to the surface normal. It was found that, without sacrificing the power efficiency of the device, the device current efficiency and external quantum efficiency were significantly enhanced at an oblique deposition angle of θ = 60° for MoO3.

© 2011 OSA

OCIS Codes
(160.4890) Materials : Organic materials
(230.3670) Optical devices : Light-emitting diodes
(310.1860) Thin films : Deposition and fabrication

ToC Category:
Optical Devices

Original Manuscript: January 12, 2011
Revised Manuscript: February 13, 2011
Manuscript Accepted: February 15, 2011
Published: February 23, 2011

S.W. Liu, Y. Divayana, X.W. Sun, Y. Wang, K.S. Leck, and H.V. Demir, "Improved performance of organic light-emitting diodes with MoO3 interlayer by oblique angle deposition," Opt. Express 19, 4513-4520 (2011)

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