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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 17, Iss. 1 — Jan. 1, 2000
  • pp: 114–119

Semitransparent metal or distributed Bragg reflector for wide-viewing-angle organic light-emitting-diode microcavities

Kristiaan Neyts, Patrick De Visschere, David K. Fork, and Greg B. Anderson  »View Author Affiliations


JOSA B, Vol. 17, Issue 1, pp. 114-119 (2000)
http://dx.doi.org/10.1364/JOSAB.17.000114


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Abstract

Microcavities for organic light-emitting devices (OLED’s) with a metal mirror on one side and a distributed Bragg reflector (DBR) on the other side have been extensively studied in the literature. Usually the DBR is highly reflective, and the resulting emission of the microcavity depends strongly on angle and wavelength. With a thick metal mirror on one side and a semi-transparent metal mirror on the other side of the OLED, a microcavity can be obtained with an optical thickness of 1 half-wavelength. Because the emission is enhanced over a wide solid angle, with a small spectral dependence, this structure is very promising for display applications. For a TPD/ALq3 structure with a typical intrinsic emission spectrum, embedded in a microcavity with a thick and a semitransparent silver mirror, the integrated emission in air, the color variation with angle, and the change in the decay time are compared with those in a DBR-based microcavity.

© 2000 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(260.3160) Physical optics : Interference
(310.6860) Thin films : Thin films, optical properties
(350.3950) Other areas of optics : Micro-optics

Citation
Kristiaan Neyts, Patrick De Visschere, David K. Fork, and Greg B. Anderson, "Semitransparent metal or distributed Bragg reflector for wide-viewing-angle organic light-emitting-diode microcavities," J. Opt. Soc. Am. B 17, 114-119 (2000)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-17-1-114

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