Enhanced brightness and efficiency of organic light-emitting diodes with an LiF in the Alq3

Young Min Kim; Joo Won Lee; Jae Hoon Jung; Kyeong Kap Paek; Man Young Sung; Jai Kyeong Kim; Byeong Kwon Ju

doi:10.1109/LED.2006.877302

Enhanced brightness and efficiency of organic light-emitting diodes with an LiF in the Alq₃

Young Min Kim, Joo Won Lee, Jae Hoon Jung, Kyeong Kap Paek, Man Young Sung, Jai Kyeong Kim, Byeong Kwon Ju

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

13 Citations (Scopus)

Abstract

Highly efficient and bright organic light-emitting diodes have been realized by inserting a thin insulating lithium fluoride (LiF) layer in the tris-(8-hydroxyquinoline) aluminum (Alq₃) with conventional organic layers. By comparing the performances of newly devised devices as a function of the position of the LiF in the Alq₃ layer, the authors propose the optimal position of the LiF in the Alq₃ layer. Experimental results show that the efficiency and brightness of the newly devised device with LiF in the Alq₃ layer were seven times higher than that without LiF in the Alq₃ layer.

Original language	English
Pages (from-to)	558-560
Number of pages	3
Journal	IEEE Electron Device Letters
Volume	27
Issue number	7
DOIs	https://doi.org/10.1109/LED.2006.877302
Publication status	Published - 2006 Jul

Keywords

Carrier injection
Lithium fluoride (LiF)
Organic light-emitting diodes (OLEDs)
Recombination efficiency

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/LED.2006.877302

Cite this

@article{827092ab64624db1ab0c27fb2591a116,

title = "Enhanced brightness and efficiency of organic light-emitting diodes with an LiF in the Alq3",

abstract = "Highly efficient and bright organic light-emitting diodes have been realized by inserting a thin insulating lithium fluoride (LiF) layer in the tris-(8-hydroxyquinoline) aluminum (Alq3) with conventional organic layers. By comparing the performances of newly devised devices as a function of the position of the LiF in the Alq3 layer, the authors propose the optimal position of the LiF in the Alq3 layer. Experimental results show that the efficiency and brightness of the newly devised device with LiF in the Alq3 layer were seven times higher than that without LiF in the Alq3 layer.",

keywords = "Carrier injection, Lithium fluoride (LiF), Organic light-emitting diodes (OLEDs), Recombination efficiency",

author = "Kim, {Young Min} and Lee, {Joo Won} and Jung, {Jae Hoon} and Paek, {Kyeong Kap} and Sung, {Man Young} and Kim, {Jai Kyeong} and Ju, {Byeong Kwon}",

note = "Funding Information: Manuscript received February 21, 2006; revised April 26, 2006. This work was supported in part by the Information Display R&D Center, one of the 21st Century Frontier R&D Programs funded by the Ministry of Commerce, Industry and Energy of the Korean government under Grant F0004041 and in part by the Industrial–Educational Cooperation Program between Korea University and LG Philips LCD. The review of this letter was arranged by Editor P. Yu.",

year = "2006",

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doi = "10.1109/LED.2006.877302",

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volume = "27",

pages = "558--560",

journal = "IEEE Electron Device Letters",

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AU - Kim, Young Min

AU - Lee, Joo Won

AU - Jung, Jae Hoon

AU - Paek, Kyeong Kap

AU - Sung, Man Young

AU - Kim, Jai Kyeong

AU - Ju, Byeong Kwon

N1 - Funding Information: Manuscript received February 21, 2006; revised April 26, 2006. This work was supported in part by the Information Display R&D Center, one of the 21st Century Frontier R&D Programs funded by the Ministry of Commerce, Industry and Energy of the Korean government under Grant F0004041 and in part by the Industrial–Educational Cooperation Program between Korea University and LG Philips LCD. The review of this letter was arranged by Editor P. Yu.

PY - 2006/7

Y1 - 2006/7

N2 - Highly efficient and bright organic light-emitting diodes have been realized by inserting a thin insulating lithium fluoride (LiF) layer in the tris-(8-hydroxyquinoline) aluminum (Alq3) with conventional organic layers. By comparing the performances of newly devised devices as a function of the position of the LiF in the Alq3 layer, the authors propose the optimal position of the LiF in the Alq3 layer. Experimental results show that the efficiency and brightness of the newly devised device with LiF in the Alq3 layer were seven times higher than that without LiF in the Alq3 layer.

AB - Highly efficient and bright organic light-emitting diodes have been realized by inserting a thin insulating lithium fluoride (LiF) layer in the tris-(8-hydroxyquinoline) aluminum (Alq3) with conventional organic layers. By comparing the performances of newly devised devices as a function of the position of the LiF in the Alq3 layer, the authors propose the optimal position of the LiF in the Alq3 layer. Experimental results show that the efficiency and brightness of the newly devised device with LiF in the Alq3 layer were seven times higher than that without LiF in the Alq3 layer.

KW - Carrier injection

KW - Lithium fluoride (LiF)

KW - Organic light-emitting diodes (OLEDs)

KW - Recombination efficiency

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