Influence of the deposition temperature on the structure and performance of tris(8-hydroxyquinoline) aluminum based flexible organic light-emitting devices

Guang Feng Wang; Xiaoming Tao; Hong Min Huang

doi:10.1016/j.apsusc.2006.09.005

Influence of the deposition temperature on the structure and performance of tris(8-hydroxyquinoline) aluminum based flexible organic light-emitting devices

Guang Feng Wang, Xiaoming Tao, Hong Min Huang

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

17 Citations (Scopus)

Abstract

Based on indium tin oxide (ITO)/N,N′diphenyl-N-N′-di(m-tdyl) benzidine (TPD)/Alq3/Al structure, flexible OLEDs on polyethylene terephthalate (PET) substrates were fabricated by physical vapor deposition (PVD) method. Tris(8-hydroxyquinoline)aluminum (Alq3) films were deposited at 90, 120 and 150 °C to examine the influence of the deposition temperature on the structure and performance of OLEDs. Electroluminescence (EL) spectra and current-voltage-luminance (I-V-L) characteristics of the OLEDs were examined. It was found that the device fabricated at a high temperature had a higher external efficiency and longer lifetime. Atomic force microscope (AFM) was adopted to characterize the surface morphology of ITO/TPD/Alq3. The higher uniform morphology of the Alq3formed at high temperature might contribute to the performance improvement of the OLEDs.

Original language	English
Pages (from-to)	4463-4466
Number of pages	4
Journal	Applied Surface Science
Volume	253
Issue number	10
DOIs	https://doi.org/10.1016/j.apsusc.2006.09.005
Publication status	Published - 15 Mar 2007

Keywords

AFM
Alq 3
Organic light-emitting device
PVD

ASJC Scopus subject areas

Surfaces, Coatings and Films

More information

10.1016/j.apsusc.2006.09.005

Cite this

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title = "Influence of the deposition temperature on the structure and performance of tris(8-hydroxyquinoline) aluminum based flexible organic light-emitting devices",

abstract = "Based on indium tin oxide (ITO)/N,N′diphenyl-N-N′-di(m-tdyl) benzidine (TPD)/Alq3/Al structure, flexible OLEDs on polyethylene terephthalate (PET) substrates were fabricated by physical vapor deposition (PVD) method. Tris(8-hydroxyquinoline)aluminum (Alq3) films were deposited at 90, 120 and 150 °C to examine the influence of the deposition temperature on the structure and performance of OLEDs. Electroluminescence (EL) spectra and current-voltage-luminance (I-V-L) characteristics of the OLEDs were examined. It was found that the device fabricated at a high temperature had a higher external efficiency and longer lifetime. Atomic force microscope (AFM) was adopted to characterize the surface morphology of ITO/TPD/Alq3. The higher uniform morphology of the Alq3formed at high temperature might contribute to the performance improvement of the OLEDs.",

keywords = "AFM, Alq 3, Organic light-emitting device, PVD",

author = "Wang, \{Guang Feng\} and Xiaoming Tao and Huang, \{Hong Min\}",

year = "2007",

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doi = "10.1016/j.apsusc.2006.09.005",

language = "English",

volume = "253",

pages = "4463--4466",

journal = "Applied Surface Science",

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publisher = "Elsevier B.V.",

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Influence of the deposition temperature on the structure and performance of tris(8-hydroxyquinoline) aluminum based flexible organic light-emitting devices. / Wang, Guang Feng; Tao, Xiaoming; Huang, Hong Min.
In: Applied Surface Science, Vol. 253, No. 10, 15.03.2007, p. 4463-4466.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

T1 - Influence of the deposition temperature on the structure and performance of tris(8-hydroxyquinoline) aluminum based flexible organic light-emitting devices

AU - Wang, Guang Feng

AU - Tao, Xiaoming

AU - Huang, Hong Min

PY - 2007/3/15

Y1 - 2007/3/15

N2 - Based on indium tin oxide (ITO)/N,N′diphenyl-N-N′-di(m-tdyl) benzidine (TPD)/Alq3/Al structure, flexible OLEDs on polyethylene terephthalate (PET) substrates were fabricated by physical vapor deposition (PVD) method. Tris(8-hydroxyquinoline)aluminum (Alq3) films were deposited at 90, 120 and 150 °C to examine the influence of the deposition temperature on the structure and performance of OLEDs. Electroluminescence (EL) spectra and current-voltage-luminance (I-V-L) characteristics of the OLEDs were examined. It was found that the device fabricated at a high temperature had a higher external efficiency and longer lifetime. Atomic force microscope (AFM) was adopted to characterize the surface morphology of ITO/TPD/Alq3. The higher uniform morphology of the Alq3formed at high temperature might contribute to the performance improvement of the OLEDs.

AB - Based on indium tin oxide (ITO)/N,N′diphenyl-N-N′-di(m-tdyl) benzidine (TPD)/Alq3/Al structure, flexible OLEDs on polyethylene terephthalate (PET) substrates were fabricated by physical vapor deposition (PVD) method. Tris(8-hydroxyquinoline)aluminum (Alq3) films were deposited at 90, 120 and 150 °C to examine the influence of the deposition temperature on the structure and performance of OLEDs. Electroluminescence (EL) spectra and current-voltage-luminance (I-V-L) characteristics of the OLEDs were examined. It was found that the device fabricated at a high temperature had a higher external efficiency and longer lifetime. Atomic force microscope (AFM) was adopted to characterize the surface morphology of ITO/TPD/Alq3. The higher uniform morphology of the Alq3formed at high temperature might contribute to the performance improvement of the OLEDs.

KW - AFM

KW - Alq 3

KW - Organic light-emitting device

KW - PVD

UR - https://www.scopus.com/pages/publications/33847075833

U2 - 10.1016/j.apsusc.2006.09.005

DO - 10.1016/j.apsusc.2006.09.005

M3 - Journal article

SN - 0169-4332

VL - 253

SP - 4463

EP - 4466

JO - Applied Surface Science

JF - Applied Surface Science

IS - 10

ER -

Influence of the deposition temperature on the structure and performance of tris(8-hydroxyquinoline) aluminum based flexible organic light-emitting devices

Abstract

Keywords

ASJC Scopus subject areas

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