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A combined experimental and simulation study on thickness dependence of the emission characteristics in multicolor single layer organic light-emitting diodes

A combined experimental and simulation study on thickness dependence of the emission characteristics in multicolor single layer organic light-emitting diodes
A combined experimental and simulation study on thickness dependence of the emission characteristics in multicolor single layer organic light-emitting diodes

The impact of the active layer thickness on the emission characteristics of multicolor single layer organic light-emitting diodes based on poly(9-vinylcarbazole) is examined by combining experimental results with model simulations. We compare experimental electroluminescence spectra with simulations using photon-emitting point dipoles and find a very good agreement. We also simulate the location of the recombination zone, considering that the emission probability distribution has a peak located 25 nm from the cathode, which decays exponentially above and below that point. Simulated radiation patterns show that microcavity effects dominate the thickness dependent emitting properties of these devices.

0003-6951
Stathopoulos, N.A.
83a4653f-c4c8-464a-8ed1-a93c52cf3833
Vasilopoulou, M.
aad1381e-d091-4090-8c7c-b74bed22393d
Palilis, L.C.
b09e9554-54da-4be5-aa08-bda894e2b86f
Georgiadou, D.G.
84977176-3678-4fb3-a3dd-2044a49c853b
Argitis, P.
ab9c4ea6-3dd2-4e34-935d-81bfb360f358
Stathopoulos, N.A.
83a4653f-c4c8-464a-8ed1-a93c52cf3833
Vasilopoulou, M.
aad1381e-d091-4090-8c7c-b74bed22393d
Palilis, L.C.
b09e9554-54da-4be5-aa08-bda894e2b86f
Georgiadou, D.G.
84977176-3678-4fb3-a3dd-2044a49c853b
Argitis, P.
ab9c4ea6-3dd2-4e34-935d-81bfb360f358

Stathopoulos, N.A., Vasilopoulou, M., Palilis, L.C., Georgiadou, D.G. and Argitis, P. (2008) A combined experimental and simulation study on thickness dependence of the emission characteristics in multicolor single layer organic light-emitting diodes. Applied Physics Letters, 93 (8), [083310]. (doi:10.1063/1.2977479).

Record type: Article

Abstract

The impact of the active layer thickness on the emission characteristics of multicolor single layer organic light-emitting diodes based on poly(9-vinylcarbazole) is examined by combining experimental results with model simulations. We compare experimental electroluminescence spectra with simulations using photon-emitting point dipoles and find a very good agreement. We also simulate the location of the recombination zone, considering that the emission probability distribution has a peak located 25 nm from the cathode, which decays exponentially above and below that point. Simulated radiation patterns show that microcavity effects dominate the thickness dependent emitting properties of these devices.

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Published date: 15 September 2008

Identifiers

Local EPrints ID: 439793
URI: http://eprints.soton.ac.uk/id/eprint/439793
ISSN: 0003-6951
PURE UUID: eef3d779-c200-4f26-bbe7-669e7474b709
ORCID for D.G. Georgiadou: ORCID iD orcid.org/0000-0002-2620-3346

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Date deposited: 04 May 2020 16:34
Last modified: 07 Oct 2020 02:27

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Contributors

Author: N.A. Stathopoulos
Author: M. Vasilopoulou
Author: L.C. Palilis
Author: D.G. Georgiadou ORCID iD
Author: P. Argitis

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