Stability improvement of organic light-emitting diode with aluminum cathode deposited by ion beam assisted deposition method

Soon Moon Jeong; Won Hoi Koo; Sang Hun Choi; Sung Jin Jo; Hong Koo Baik; Se Jong Lee; Kie Moon Song

doi:10.1016/j.tsf.2004.07.048

Stability improvement of organic light-emitting diode with aluminum cathode deposited by ion beam assisted deposition method

Soon Moon Jeong, Won Hoi Koo, Sang Hun Choi, Sung Jin Jo, Hong Koo Baik, Se Jong Lee, Kie Moon Song

School of Energy Engineering

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

1 Scopus citations

Abstract

Highly stable organic electroluminescent devices based on spin-coated poly-p-phenylene-vynylene (PPV) thin films have been achieved. We investigated the electrical properties of ion beam assisted aluminum cathode contacting PPV compared that of thermal evaporation. Energetic particles of Al assisted by Ar⁺ ion increase the contact area between Al and PPV minimizing contact resistance. In addition, dense Al cathode inhibits the permeation of H₂O and O₂ through pinhole defects, which results in retarding dark spot growth. It is believed that the lifetime of organic light-emitting diode (OLED) device was enhanced effectively by ion beam assisted deposition process resulting from dense Al structure.

Original language	English
Pages (from-to)	227-230
Number of pages	4
Journal	Thin Solid Films
Volume	475
Issue number	1-2 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.tsf.2004.07.048
State	Published - 22 Mar 2005

Keywords

Contact resistance
Ion beam assisted deposition
Lifetime
OLED

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10.1016/j.tsf.2004.07.048

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title = "Stability improvement of organic light-emitting diode with aluminum cathode deposited by ion beam assisted deposition method",

abstract = "Highly stable organic electroluminescent devices based on spin-coated poly-p-phenylene-vynylene (PPV) thin films have been achieved. We investigated the electrical properties of ion beam assisted aluminum cathode contacting PPV compared that of thermal evaporation. Energetic particles of Al assisted by Ar+ ion increase the contact area between Al and PPV minimizing contact resistance. In addition, dense Al cathode inhibits the permeation of H2O and O2 through pinhole defects, which results in retarding dark spot growth. It is believed that the lifetime of organic light-emitting diode (OLED) device was enhanced effectively by ion beam assisted deposition process resulting from dense Al structure.",

keywords = "Contact resistance, Ion beam assisted deposition, Lifetime, OLED",

author = "Jeong, {Soon Moon} and Koo, {Won Hoi} and Choi, {Sang Hun} and Jo, {Sung Jin} and Baik, {Hong Koo} and Lee, {Se Jong} and Song, {Kie Moon}",

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T1 - Stability improvement of organic light-emitting diode with aluminum cathode deposited by ion beam assisted deposition method

AU - Jeong, Soon Moon

AU - Koo, Won Hoi

AU - Choi, Sang Hun

AU - Jo, Sung Jin

AU - Baik, Hong Koo

AU - Lee, Se Jong

AU - Song, Kie Moon

PY - 2005/3/22

Y1 - 2005/3/22

N2 - Highly stable organic electroluminescent devices based on spin-coated poly-p-phenylene-vynylene (PPV) thin films have been achieved. We investigated the electrical properties of ion beam assisted aluminum cathode contacting PPV compared that of thermal evaporation. Energetic particles of Al assisted by Ar+ ion increase the contact area between Al and PPV minimizing contact resistance. In addition, dense Al cathode inhibits the permeation of H2O and O2 through pinhole defects, which results in retarding dark spot growth. It is believed that the lifetime of organic light-emitting diode (OLED) device was enhanced effectively by ion beam assisted deposition process resulting from dense Al structure.

AB - Highly stable organic electroluminescent devices based on spin-coated poly-p-phenylene-vynylene (PPV) thin films have been achieved. We investigated the electrical properties of ion beam assisted aluminum cathode contacting PPV compared that of thermal evaporation. Energetic particles of Al assisted by Ar+ ion increase the contact area between Al and PPV minimizing contact resistance. In addition, dense Al cathode inhibits the permeation of H2O and O2 through pinhole defects, which results in retarding dark spot growth. It is believed that the lifetime of organic light-emitting diode (OLED) device was enhanced effectively by ion beam assisted deposition process resulting from dense Al structure.

KW - Contact resistance

KW - Ion beam assisted deposition

KW - Lifetime

KW - OLED

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DO - 10.1016/j.tsf.2004.07.048

M3 - Article

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JO - Thin Solid Films

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IS - 1-2 SPEC. ISS.

ER -

Stability improvement of organic light-emitting diode with aluminum cathode deposited by ion beam assisted deposition method

Abstract

Keywords

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