Multi-objective optimization of microcavity OLEDs with DBR mirror

Lu, Albert W., Chan, J., Ng, Alan Man Ching, Djurisic, A. B. and Rakic, A. D. (2007). Multi-objective optimization of microcavity OLEDs with DBR mirror. In: Organic Photonic Materials and Devices IX. Organic Photonic Materials and Devices IX, San Jose, United States, (647014-1-647014-9). 21-24 January 2007. doi:10.1117/12.701424

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Author Lu, Albert W.
Chan, J.
Ng, Alan Man Ching
Djurisic, A. B.
Rakic, A. D.
Title of paper Multi-objective optimization of microcavity OLEDs with DBR mirror
Conference name Organic Photonic Materials and Devices IX
Conference location San Jose, United States
Conference dates 21-24 January 2007
Proceedings title Organic Photonic Materials and Devices IX   Check publisher's open access policy
Journal name Proceedings of SPIE - International Society for Optical Engineering   Check publisher's open access policy
Place of Publication Bellingham, WA, United States
Publisher S P I E - International Society for Optical Engineering
Publication Year 2007
Sub-type Fully published paper
DOI 10.1117/12.701424
Open Access Status File (Publisher version)
ISBN 9780819465832
ISSN 0277-786X
Volume 6470
Start page 647014-1
End page 647014-9
Total pages 9
Language eng
Formatted Abstract/Summary
In this work, the emission efficiency and spectral shift with respect to viewing angle were optimized by optimizing the design of the multi-layer top mirror of a microcavity OLED device. We first established criteria for the emission side mirror in order to optimize light intensity and spectral shift with viewing angle. Then we designed mirror using metallic and dielectric layers based on the target defined. The electroluminescence emission spectra of a microcavity OLED consisting of widely used organic materials, N,N´-di(naphthalene-1-yl)-N,N´-diphenylbenzidine (NPB) as a hole transport layer and tris (8-hydroxyquinoline) (Alq3) as emitting and electron transporting layer was then calculated. Silver was used as the anode and back reflection mirror for the microcavity OLED. The simulation was performed for both the conventional LiF/Al cathode/top mirror and the optimized 5-layered top mirror. Our results indicate that by following the design procedure outlined, we simultaneously optimize the device for better light intensity and spectral shift with viewing angle.

Subjects 671304 Data, image and text equipment
Keyword Microcavity OLEDs
Mirror design
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Paper presented during Poster Session. Article number 647014. Copyright 2007 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

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