Performance enhancement of organic light-emitting diode by heat treatment

F. L. Wong; H. Y. Sun; S. W. Tong; M. Y. Chan; C. S. Lee; S. T. Lee

doi:10.1016/j.jcrysgro.2005.12.032

Performance enhancement of organic light-emitting diode by heat treatment

F. L. Wong, H. Y. Sun, S. W. Tong, M. Y. Chan, C. S. Lee, S. T. Lee

Centre of Super-Diamond and Advanced Films

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

8 Citations (Scopus)

Abstract

The effects of post-fabrication heat treatments on the performance and stability of organic light-emitting diodes (OLEDs) were studied in standard NPB/Alq3 devices. Electroluminescence (EL) performance, growth of dark spots, and operation stability of the devices with different heat-treatments were measured and monitored. It was found that optimum thermal treatment can slow down the growth of dark-spot and luminescence degradation in the OLEDs. Substantial increase in operation lifetime was also observed in the heat-treated samples. Heating at 70 °C for 7.5 min increases the half-brightness lifetime from 6400 h (untreated device) to over 15,000 h.

Original language	English
Pages (from-to)	110-114
Journal	Journal of Crystal Growth
Volume	288
Issue number	1
DOIs	https://doi.org/10.1016/j.jcrysgro.2005.12.032
Publication status	Published - 2 Feb 2006
Event	International Conference on Materials for Advanced Technologies - Duration: 4 Jul 2005 → 8 Jul 2005

Research Keywords

A1. Treatment
A3. Thermal evaporation
B3. Organic light-emitting diodes

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10.1016/j.jcrysgro.2005.12.032

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title = "Performance enhancement of organic light-emitting diode by heat treatment",

abstract = "The effects of post-fabrication heat treatments on the performance and stability of organic light-emitting diodes (OLEDs) were studied in standard NPB/Alq3 devices. Electroluminescence (EL) performance, growth of dark spots, and operation stability of the devices with different heat-treatments were measured and monitored. It was found that optimum thermal treatment can slow down the growth of dark-spot and luminescence degradation in the OLEDs. Substantial increase in operation lifetime was also observed in the heat-treated samples. Heating at 70 °C for 7.5 min increases the half-brightness lifetime from 6400 h (untreated device) to over 15,000 h.",

keywords = "A1. Treatment, A3. Thermal evaporation, B3. Organic light-emitting diodes",

author = "Wong, {F. L.} and Sun, {H. Y.} and Tong, {S. W.} and Chan, {M. Y.} and Lee, {C. S.} and Lee, {S. T.}",

year = "2006",

month = feb,

day = "2",

doi = "10.1016/j.jcrysgro.2005.12.032",

language = "English",

volume = "288",

pages = "110--114",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

publisher = "Elsevier B.V.",

number = "1",

note = "International Conference on Materials for Advanced Technologies ; Conference date: 04-07-2005 Through 08-07-2005",

}

TY - JOUR

T1 - Performance enhancement of organic light-emitting diode by heat treatment

AU - Wong, F. L.

AU - Sun, H. Y.

AU - Tong, S. W.

AU - Chan, M. Y.

AU - Lee, C. S.

AU - Lee, S. T.

PY - 2006/2/2

Y1 - 2006/2/2

N2 - The effects of post-fabrication heat treatments on the performance and stability of organic light-emitting diodes (OLEDs) were studied in standard NPB/Alq3 devices. Electroluminescence (EL) performance, growth of dark spots, and operation stability of the devices with different heat-treatments were measured and monitored. It was found that optimum thermal treatment can slow down the growth of dark-spot and luminescence degradation in the OLEDs. Substantial increase in operation lifetime was also observed in the heat-treated samples. Heating at 70 °C for 7.5 min increases the half-brightness lifetime from 6400 h (untreated device) to over 15,000 h.

AB - The effects of post-fabrication heat treatments on the performance and stability of organic light-emitting diodes (OLEDs) were studied in standard NPB/Alq3 devices. Electroluminescence (EL) performance, growth of dark spots, and operation stability of the devices with different heat-treatments were measured and monitored. It was found that optimum thermal treatment can slow down the growth of dark-spot and luminescence degradation in the OLEDs. Substantial increase in operation lifetime was also observed in the heat-treated samples. Heating at 70 °C for 7.5 min increases the half-brightness lifetime from 6400 h (untreated device) to over 15,000 h.

KW - A1. Treatment

KW - A3. Thermal evaporation

KW - B3. Organic light-emitting diodes

UR - http://www.scopus.com/inward/record.url?scp=31644450917&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-31644450917&origin=recordpage

U2 - 10.1016/j.jcrysgro.2005.12.032

DO - 10.1016/j.jcrysgro.2005.12.032

M3 - RGC 21 - Publication in refereed journal

SN - 0022-0248

VL - 288

SP - 110

EP - 114

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

IS - 1

T2 - International Conference on Materials for Advanced Technologies

Y2 - 4 July 2005 through 8 July 2005

ER -

Performance enhancement of organic light-emitting diode by heat treatment

Abstract

Research Keywords

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