Combinatorial fabrication and studies of intense efficient ultraviolet–violet organic light-emitting device arrays

Arrays of ultraviolet–violet (indium tin oxide)/[copper phthalocyanine (CuPc)]/[4,4′-bis(9-carbazolyl)biphenyl (CBP)]/[2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4oxadiazole (Bu-PBD)]/CsF/Al organic light-emitting devices, fabricated combinatorially using a sliding shutter technique, are described....

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Published in:Applied physics letters 2001-10, Vol.79 (14), p.2282-2284
Main Authors: Zou, L., Savvate’ev, V., Booher, J., Kim, C.-H., Shinar, J.
Format: Article
Language:English
Subjects:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
ELECTROLUMINESCENCE
FABRICATION
INDIUM
PHOTOLUMINESCENCE
PHTHALOCYANINES
QUANTUM EFFICIENCY
SHUTTERS
SPECTRA
THICKNESS
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cited_by cdi_FETCH-LOGICAL-c321t-92238315a609701601f76a296cee107e6f31ded2b78dac278ef3fd13a1cb51cb3
cites cdi_FETCH-LOGICAL-c321t-92238315a609701601f76a296cee107e6f31ded2b78dac278ef3fd13a1cb51cb3
container_end_page 2284
container_issue 14
container_start_page 2282
container_title Applied physics letters
container_volume 79
creator Zou, L.
Savvate’ev, V.
Booher, J.
Kim, C.-H.
Shinar, J.
description Arrays of ultraviolet–violet (indium tin oxide)/[copper phthalocyanine (CuPc)]/[4,4′-bis(9-carbazolyl)biphenyl (CBP)]/[2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4oxadiazole (Bu-PBD)]/CsF/Al organic light-emitting devices, fabricated combinatorially using a sliding shutter technique, are described. Comparison of the OLED electroluminescence and CBP photoluminescence spectra indicates that the emission originates from the bulk of that layer. In arrays of devices in which the thickness of the CuPc and Bu–PBD were varied, but that of CBP was fixed at 50 nm, the optimal radiance R was obtained at CuPc and Bu–PBD thicknesses of 15 and 18 nm, respectively. At 10 mA/cm2, R was 0.38 mW/cm2, i.e., the external quantum efficiency was 1.25%; R increased to ∼1.2 mW/cm2 at 100 mA/cm2.
doi_str_mv 10.1063/1.1399004
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subjects CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
ELECTROLUMINESCENCE
FABRICATION
INDIUM
PHOTOLUMINESCENCE
PHTHALOCYANINES
QUANTUM EFFICIENCY
SHUTTERS
SPECTRA
THICKNESS
title Combinatorial fabrication and studies of intense efficient ultraviolet–violet organic light-emitting device arrays
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