Angular dependence of the emission from the low Q-factor organic microcavity light emitting diodes

Cheung, C.H., Ng, A.M.C., Djurisic, A.B., Liu, Z.T., Kwong, C. Y., Chui, P. C., Tam, H. L., Cheah, K. W., Chan, W. K., Chan, J., Lu, A. W. and Rakic, A. D. (2008) Angular dependence of the emission from the low Q-factor organic microcavity light emitting diodes. Displays, 29 3: 358-364. doi:10.1016/j.displa.2007.10.007


Author Cheung, C.H.
Ng, A.M.C.
Djurisic, A.B.
Liu, Z.T.
Kwong, C. Y.
Chui, P. C.
Tam, H. L.
Cheah, K. W.
Chan, W. K.
Chan, J.
Lu, A. W.
Rakic, A. D.
Title Angular dependence of the emission from the low Q-factor organic microcavity light emitting diodes
Journal name Displays   Check publisher's open access policy
ISSN 0141-9382
Publication date 2008-10
Year available 2007
Sub-type Article (original research)
DOI 10.1016/j.displa.2007.10.007
Volume 29
Issue 3
Start page 358
End page 364
Total pages 7
Editor S. Morozumi
S. Sharples
Place of publication Oxford, England
Publisher Elseiver BV
Language eng
Subject 100702 Molecular and Organic Electronics
970109 Expanding Knowledge in Engineering
CX
Abstract Microcavity light emitting diodes based on materials with broad emission spectrum, such as tris (8-hydroxyquinoline) aluminum (Alq3), typically exhibit a significant blue shift of the emission wavelength with increasing viewing angle. In this work, we investigate the influence of the organic layer thickness on the angular dependence of the emission spectrum in low Q-factor microcavity OLEDs. We demonstrate that for different organic layer thicknesses qualitatively different emission wavelength dependences on the viewing angle can be obtained in microcavity devices consisting of two organic layers, N,N′-di(naphthalene-1-yl)-N,N′-diphenylbenzidine (NPB) as a hole transport layer and Alq3 as emitting layer. The devices with different organic layer thickness were characterized by electroluminescence, photoluminescence, reflectance, and transmission measurements and results compared with the model.
Keyword OLEDs
Microcavity
Electroluminescence
Photoluminescence
Q-Index Code CX
Q-Index Status Provisional Code
Additional Notes Available online 6 November 2007.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Information Technology and Electrical Engineering Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Wed, 25 Nov 2009, 12:12:43 EST by Donna Clark on behalf of School of Information Technol and Elec Engineering