Fabrication of high efficiency and color stable white organic light-emitting diodes by an alignment free mask patterning

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

doi:10.1016/j.orgel.2008.12.015

Fabrication of high efficiency and color stable white organic light-emitting diodes by an alignment free mask patterning

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

Dankook University

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

13 Scopus citations

Abstract

Small molecule based white organic light-emitting diodes were fabricated by using an alignment free mask patterning method. A phosphorescent red/green emitting layer was patterned by a metal mask without any alignment and a blue phosphorescent emitting layer was commonly deposited on the patterned red/green emitting layer. A white emission could be obtained due to separate emission of red/green and blue emitting layers. A maximum current efficiency of 30.7 cd/A and a current efficiency of 26.0 cd/A at 1000 cd/m² were obtained with a color coordinate of (0.39, 0.45). In addition, there was little change of emission spectrum according to luminance because of balanced red/green and blue emissions.

Original language	English
Pages (from-to)	384-387
Number of pages	4
Journal	Organic Electronics
Volume	10
Issue number	3
DOIs	https://doi.org/10.1016/j.orgel.2008.12.015
State	Published - May 2009
Externally published	Yes

Keywords

Alignment free mask patterning
Color stability
High efficiency
White organic light-emitting diodes

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10.1016/j.orgel.2008.12.015

Cite this

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title = "Fabrication of high efficiency and color stable white organic light-emitting diodes by an alignment free mask patterning",

abstract = "Small molecule based white organic light-emitting diodes were fabricated by using an alignment free mask patterning method. A phosphorescent red/green emitting layer was patterned by a metal mask without any alignment and a blue phosphorescent emitting layer was commonly deposited on the patterned red/green emitting layer. A white emission could be obtained due to separate emission of red/green and blue emitting layers. A maximum current efficiency of 30.7 cd/A and a current efficiency of 26.0 cd/A at 1000 cd/m2 were obtained with a color coordinate of (0.39, 0.45). In addition, there was little change of emission spectrum according to luminance because of balanced red/green and blue emissions.",

keywords = "Alignment free mask patterning, Color stability, High efficiency, White organic light-emitting diodes",

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

year = "2009",

month = may,

doi = "10.1016/j.orgel.2008.12.015",

language = "English",

volume = "10",

pages = "384--387",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

number = "3",

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TY - JOUR

T1 - Fabrication of high efficiency and color stable white organic light-emitting diodes by an alignment free mask patterning

AU - Yook, Kyoung Soo

AU - Jeon, Soon Ok

AU - Joo, Chul Woong

AU - Lee, Jun Yeob

PY - 2009/5

Y1 - 2009/5

N2 - Small molecule based white organic light-emitting diodes were fabricated by using an alignment free mask patterning method. A phosphorescent red/green emitting layer was patterned by a metal mask without any alignment and a blue phosphorescent emitting layer was commonly deposited on the patterned red/green emitting layer. A white emission could be obtained due to separate emission of red/green and blue emitting layers. A maximum current efficiency of 30.7 cd/A and a current efficiency of 26.0 cd/A at 1000 cd/m2 were obtained with a color coordinate of (0.39, 0.45). In addition, there was little change of emission spectrum according to luminance because of balanced red/green and blue emissions.

AB - Small molecule based white organic light-emitting diodes were fabricated by using an alignment free mask patterning method. A phosphorescent red/green emitting layer was patterned by a metal mask without any alignment and a blue phosphorescent emitting layer was commonly deposited on the patterned red/green emitting layer. A white emission could be obtained due to separate emission of red/green and blue emitting layers. A maximum current efficiency of 30.7 cd/A and a current efficiency of 26.0 cd/A at 1000 cd/m2 were obtained with a color coordinate of (0.39, 0.45). In addition, there was little change of emission spectrum according to luminance because of balanced red/green and blue emissions.

KW - Alignment free mask patterning

KW - Color stability

KW - High efficiency

KW - White organic light-emitting diodes

UR - https://www.scopus.com/pages/publications/62649166828

U2 - 10.1016/j.orgel.2008.12.015

DO - 10.1016/j.orgel.2008.12.015

M3 - Article

AN - SCOPUS:62649166828

SN - 1566-1199

VL - 10

SP - 384

EP - 387

JO - Organic Electronics

JF - Organic Electronics

IS - 3

ER -

Fabrication of high efficiency and color stable white organic light-emitting diodes by an alignment free mask patterning

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Keywords

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