Performance improvement of the organic light-emitting diodes by using a LiF/pyromellitic dianhydride stacked cathode interfacial layer

Eunkyoung Nam; Mi Ran Moon; Donggeun Jung; Sungwoo Lee; Heeyeop Chae; Jae Hyun Cho; Junsin Yi; Sang Han Park; Mann Ho Cho; Hyoungsub Kim

doi:10.1149/1.3497351

Performance improvement of the organic light-emitting diodes by using a LiF/pyromellitic dianhydride stacked cathode interfacial layer

Eunkyoung Nam, Mi Ran Moon, Donggeun Jung, Sungwoo Lee, Heeyeop Chae, Jae Hyun Cho, Junsin Yi, Sang Han Park, Mann Ho Cho, Hyoungsub Kim

Department of Physics

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

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Abstract

A bilayered cathode interfacial structure consisting of lithium fluoride (LiF) and pyromellitic dianhydride (PMDA) was used between Al and tris-(8-hydroxyquinoline) aluminum (Al q₃) in the organic light-emitting diode (OLED), and a better performance enhancement compared to the OLED with a single LiF interfacial layer was achieved by using an optimal thickness combination of the bilayered interfacial structure (0.3 nm LiF/0.7 nm PMDA). The bilayered interfacial stucture with an optimum thickness combination decreased the parallel bulk resistance and lowered the electron injection barrier height between Al and Al q₃ according to the impedance and in situ ultraviolet photoelectron spectroscopy measurements, respectively.

Original language	English
Pages (from-to)	J425-J428
Journal	Journal of the Electrochemical Society
Volume	157
Issue number	12
DOIs	https://doi.org/10.1149/1.3497351
Publication status	Published - 2010

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1149/1.3497351

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title = "Performance improvement of the organic light-emitting diodes by using a LiF/pyromellitic dianhydride stacked cathode interfacial layer",

abstract = "A bilayered cathode interfacial structure consisting of lithium fluoride (LiF) and pyromellitic dianhydride (PMDA) was used between Al and tris-(8-hydroxyquinoline) aluminum (Al q3) in the organic light-emitting diode (OLED), and a better performance enhancement compared to the OLED with a single LiF interfacial layer was achieved by using an optimal thickness combination of the bilayered interfacial structure (0.3 nm LiF/0.7 nm PMDA). The bilayered interfacial stucture with an optimum thickness combination decreased the parallel bulk resistance and lowered the electron injection barrier height between Al and Al q3 according to the impedance and in situ ultraviolet photoelectron spectroscopy measurements, respectively.",

author = "Eunkyoung Nam and Moon, {Mi Ran} and Donggeun Jung and Sungwoo Lee and Heeyeop Chae and Cho, {Jae Hyun} and Junsin Yi and Park, {Sang Han} and Cho, {Mann Ho} and Hyoungsub Kim",

year = "2010",

doi = "10.1149/1.3497351",

language = "English",

volume = "157",

pages = "J425--J428",

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publisher = "Electrochemical Society, Inc.",

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AU - Nam, Eunkyoung

AU - Moon, Mi Ran

AU - Jung, Donggeun

AU - Lee, Sungwoo

AU - Chae, Heeyeop

AU - Cho, Jae Hyun

AU - Yi, Junsin

AU - Park, Sang Han

AU - Cho, Mann Ho

AU - Kim, Hyoungsub

PY - 2010

Y1 - 2010

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AB - A bilayered cathode interfacial structure consisting of lithium fluoride (LiF) and pyromellitic dianhydride (PMDA) was used between Al and tris-(8-hydroxyquinoline) aluminum (Al q3) in the organic light-emitting diode (OLED), and a better performance enhancement compared to the OLED with a single LiF interfacial layer was achieved by using an optimal thickness combination of the bilayered interfacial structure (0.3 nm LiF/0.7 nm PMDA). The bilayered interfacial stucture with an optimum thickness combination decreased the parallel bulk resistance and lowered the electron injection barrier height between Al and Al q3 according to the impedance and in situ ultraviolet photoelectron spectroscopy measurements, respectively.

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JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

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Performance improvement of the organic light-emitting diodes by using a LiF/pyromellitic dianhydride stacked cathode interfacial layer

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

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