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.
Stathopoulos, N.A.
83a4653f-c4c8-464a-8ed1-a93c52cf3833
Vasilopoulou, M.
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Palilis, L.C.
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Georgiadou, D.G.
84977176-3678-4fb3-a3dd-2044a49c853b
Argitis, P.
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15 September 2008
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).
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
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Local EPrints ID: 439793
URI: http://eprints.soton.ac.uk/id/eprint/439793
ISSN: 0003-6951
PURE UUID: eef3d779-c200-4f26-bbe7-669e7474b709
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Date deposited: 04 May 2020 16:34
Last modified: 17 Mar 2024 04:00
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Contributors
Author:
N.A. Stathopoulos
Author:
M. Vasilopoulou
Author:
L.C. Palilis
Author:
P. Argitis
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