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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 36 — Dec. 20, 2002
  • pp: 7650–7656

Organic microcavity light-emitting diodes with metal mirrors: dependence of the emission wavelength on the viewing angle

Aleksandra B. Djurišić and Aleksandar D. Rakić  »View Author Affiliations


Applied Optics, Vol. 41, Issue 36, pp. 7650-7656 (2002)
http://dx.doi.org/10.1364/AO.41.007650


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Abstract

Organic microcavity light-emitting diodes typically exhibit a blueshift of the emitting wavelength with increasing viewing angle. We have modeled the shift of the resonance wavelength for several metal mirrors. Eight metals (Al, Ag, Cr, Ti, Au, Ni, Pt, and Cu) have been considered as top or bottom mirrors, depending on their work functions. The model fully takes into account the dependence of the phase change that occurs on reflection on angle and wavelength for both s and p polarization, as well as on dispersion in the organic layers. Different contributions to the emission wavelength shift are discussed. The influence of the thickness of the bottom mirror and of the choice and thickness of the organic materials inside the cavity has been investigated. Based on the results obtained, guidelines for a choice of materials to reduce blueshift are given.

© 2002 Optical Society of America

OCIS Codes
(160.4890) Materials : Organic materials
(230.3670) Optical devices : Light-emitting diodes
(230.3990) Optical devices : Micro-optical devices

History
Original Manuscript: June 26, 2002
Revised Manuscript: June 26, 2002
Published: December 20, 2002

Citation
Aleksandra B. Djurišić and Aleksandar D. Rakić, "Organic microcavity light-emitting diodes with metal mirrors: dependence of the emission wavelength on the viewing angle," Appl. Opt. 41, 7650-7656 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-36-7650

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