Color stability and suppressed efficiency roll-off in white organic light-emitting diodes through management of interlayer and host properties

Kyoung Soo Yook; Soon Ok Jeon; Chul Woong Joo; Jun Yeob Lee

doi:10.1016/j.jiec.2008.11.011

Color stability and suppressed efficiency roll-off in white organic light-emitting diodes through management of interlayer and host properties

Kyoung Soo Yook, Soon Ok Jeon, Chul Woong Joo, Jun Yeob Lee

Dankook University

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

Color stability and efficiency roll-off of white light-emitting diodes (WOLEDs) with blue fluorescent and red phosphorescent emitting materials were manipulated by controlling the charge transport properties of interlayer and triplet host materials. A pure white emission was observed in WOLEDs with a bipolar interlayer and a hole transport type triplet host material. A white color coordinate of (0.31, 0.35) and a current efficiency of 14.4 cd/A were obtained. In addition, color index of WOLEDs could be kept stable up to a high luminance of 10,000 cd/m² and an efficiency roll-off was also suppressed.

Original language	English
Pages (from-to)	420-422
Number of pages	3
Journal	Journal of Industrial and Engineering Chemistry
Volume	15
Issue number	3
DOIs	https://doi.org/10.1016/j.jiec.2008.11.011
State	Published - 25 May 2009
Externally published	Yes

Keywords

Color stability
Efficiency roll-off
White light-emitting diode

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10.1016/j.jiec.2008.11.011

Cite this

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title = "Color stability and suppressed efficiency roll-off in white organic light-emitting diodes through management of interlayer and host properties",

abstract = "Color stability and efficiency roll-off of white light-emitting diodes (WOLEDs) with blue fluorescent and red phosphorescent emitting materials were manipulated by controlling the charge transport properties of interlayer and triplet host materials. A pure white emission was observed in WOLEDs with a bipolar interlayer and a hole transport type triplet host material. A white color coordinate of (0.31, 0.35) and a current efficiency of 14.4 cd/A were obtained. In addition, color index of WOLEDs could be kept stable up to a high luminance of 10,000 cd/m2 and an efficiency roll-off was also suppressed.",

keywords = "Color stability, Efficiency roll-off, White light-emitting diode",

author = "Yook, \{Kyoung Soo\} and Jeon, \{Soon Ok\} and Joo, \{Chul Woong\} and Lee, \{Jun Yeob\}",

year = "2009",

month = may,

day = "25",

doi = "10.1016/j.jiec.2008.11.011",

language = "English",

volume = "15",

pages = "420--422",

journal = "Journal of Industrial and Engineering Chemistry",

issn = "1226-086X",

publisher = "Korean Society of Industrial Engineering Chemistry",

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T1 - Color stability and suppressed efficiency roll-off in white organic light-emitting diodes through management of interlayer and host properties

AU - Yook, Kyoung Soo

AU - Jeon, Soon Ok

AU - Joo, Chul Woong

AU - Lee, Jun Yeob

PY - 2009/5/25

Y1 - 2009/5/25

N2 - Color stability and efficiency roll-off of white light-emitting diodes (WOLEDs) with blue fluorescent and red phosphorescent emitting materials were manipulated by controlling the charge transport properties of interlayer and triplet host materials. A pure white emission was observed in WOLEDs with a bipolar interlayer and a hole transport type triplet host material. A white color coordinate of (0.31, 0.35) and a current efficiency of 14.4 cd/A were obtained. In addition, color index of WOLEDs could be kept stable up to a high luminance of 10,000 cd/m2 and an efficiency roll-off was also suppressed.

AB - Color stability and efficiency roll-off of white light-emitting diodes (WOLEDs) with blue fluorescent and red phosphorescent emitting materials were manipulated by controlling the charge transport properties of interlayer and triplet host materials. A pure white emission was observed in WOLEDs with a bipolar interlayer and a hole transport type triplet host material. A white color coordinate of (0.31, 0.35) and a current efficiency of 14.4 cd/A were obtained. In addition, color index of WOLEDs could be kept stable up to a high luminance of 10,000 cd/m2 and an efficiency roll-off was also suppressed.

KW - Color stability

KW - Efficiency roll-off

KW - White light-emitting diode

UR - https://www.scopus.com/pages/publications/67349257239

U2 - 10.1016/j.jiec.2008.11.011

DO - 10.1016/j.jiec.2008.11.011

M3 - Article

AN - SCOPUS:67349257239

SN - 1226-086X

VL - 15

SP - 420

EP - 422

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

IS - 3

ER -

Color stability and suppressed efficiency roll-off in white organic light-emitting diodes through management of interlayer and host properties

Abstract

Keywords

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