Characteristics of organic light-emitting devices by the surface treatment of indium tin oxide surfaces using atmospheric pressure plasmas

Chang Hyun Jeong; June Hee Lee; Yong Hyuk Lee; Nam Gil Cho; Jong Tae Lim; Cheol Hee Moon; Geun Young Yeom

doi:10.1143/JJAP.44.L41

Characteristics of organic light-emitting devices by the surface treatment of indium tin oxide surfaces using atmospheric pressure plasmas

Chang Hyun Jeong
, June Hee Lee
, Yong Hyuk Lee
, Nam Gil Cho
, Jong Tae Lim
, Cheol Hee Moon
, Geun Young Yeom

Department of Advanced Materials Science and Engineering

Sungkyunkwan University
Samsung

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

7 Scopus citations

Abstract

This study examined the effects of a He/O₂ and He/SF ₆ atmospheric pressure plasma surface treatment of indium tin oxide (ITO) glass on the ITO surface and electrical characteristics of organic light emitting diodes (OLEDs). The OLEDs composed of ITO glass/2-TNATA/NPD/Alq3/LiF/ Al showed better electrical characteristics, such as lower turn-on voltage, higher power efficiency, etc., after the He/O₂ or He/SF₆ plasma treatment. The He/SF₆ treatment resulted in superior electrical characteristics compared with the He/O₂ treatment. The electrical improvement as a result of the He/SF₆ and He/O ₂ plasma treatments is related to the decrease in the carbon and Sn⁴⁺ concentration on the ITO surface and fluorine doping of the ITO possibly indicating a change in the work function as a result of the treatments.

Original language	English
Pages (from-to)	L41-L44
Journal	Japanese Journal of Applied Physics
Volume	44
Issue number	1-7
DOIs	https://doi.org/10.1143/JJAP.44.L41
State	Published - 2005

Keywords

Atmospheric pressure plasma
He/O
He/SF
ITO
OLED
Surface treatment

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title = "Characteristics of organic light-emitting devices by the surface treatment of indium tin oxide surfaces using atmospheric pressure plasmas",

abstract = "This study examined the effects of a He/O2 and He/SF 6 atmospheric pressure plasma surface treatment of indium tin oxide (ITO) glass on the ITO surface and electrical characteristics of organic light emitting diodes (OLEDs). The OLEDs composed of ITO glass/2-TNATA/NPD/Alq3/LiF/ Al showed better electrical characteristics, such as lower turn-on voltage, higher power efficiency, etc., after the He/O2 or He/SF6 plasma treatment. The He/SF6 treatment resulted in superior electrical characteristics compared with the He/O2 treatment. The electrical improvement as a result of the He/SF6 and He/O 2 plasma treatments is related to the decrease in the carbon and Sn4+ concentration on the ITO surface and fluorine doping of the ITO possibly indicating a change in the work function as a result of the treatments.",

keywords = "Atmospheric pressure plasma, He/O, He/SF, ITO, OLED, Surface treatment",

author = "Jeong, \{Chang Hyun\} and Lee, \{June Hee\} and Lee, \{Yong Hyuk\} and Cho, \{Nam Gil\} and Lim, \{Jong Tae\} and Moon, \{Cheol Hee\} and Yeom, \{Geun Young\}",

year = "2005",

doi = "10.1143/JJAP.44.L41",

language = "English",

volume = "44",

pages = "L41--L44",

journal = "Japanese Journal of Applied Physics",

issn = "0021-4922",

publisher = "Institute of Physics",

number = "1-7",

}

TY - JOUR

T1 - Characteristics of organic light-emitting devices by the surface treatment of indium tin oxide surfaces using atmospheric pressure plasmas

AU - Jeong, Chang Hyun

AU - Lee, June Hee

AU - Lee, Yong Hyuk

AU - Cho, Nam Gil

AU - Lim, Jong Tae

AU - Moon, Cheol Hee

AU - Yeom, Geun Young

PY - 2005

Y1 - 2005

N2 - This study examined the effects of a He/O2 and He/SF 6 atmospheric pressure plasma surface treatment of indium tin oxide (ITO) glass on the ITO surface and electrical characteristics of organic light emitting diodes (OLEDs). The OLEDs composed of ITO glass/2-TNATA/NPD/Alq3/LiF/ Al showed better electrical characteristics, such as lower turn-on voltage, higher power efficiency, etc., after the He/O2 or He/SF6 plasma treatment. The He/SF6 treatment resulted in superior electrical characteristics compared with the He/O2 treatment. The electrical improvement as a result of the He/SF6 and He/O 2 plasma treatments is related to the decrease in the carbon and Sn4+ concentration on the ITO surface and fluorine doping of the ITO possibly indicating a change in the work function as a result of the treatments.

AB - This study examined the effects of a He/O2 and He/SF 6 atmospheric pressure plasma surface treatment of indium tin oxide (ITO) glass on the ITO surface and electrical characteristics of organic light emitting diodes (OLEDs). The OLEDs composed of ITO glass/2-TNATA/NPD/Alq3/LiF/ Al showed better electrical characteristics, such as lower turn-on voltage, higher power efficiency, etc., after the He/O2 or He/SF6 plasma treatment. The He/SF6 treatment resulted in superior electrical characteristics compared with the He/O2 treatment. The electrical improvement as a result of the He/SF6 and He/O 2 plasma treatments is related to the decrease in the carbon and Sn4+ concentration on the ITO surface and fluorine doping of the ITO possibly indicating a change in the work function as a result of the treatments.

KW - Atmospheric pressure plasma

KW - He/O

KW - He/SF

KW - ITO

KW - OLED

KW - Surface treatment

UR - https://www.scopus.com/pages/publications/17444404249

U2 - 10.1143/JJAP.44.L41

DO - 10.1143/JJAP.44.L41

M3 - Article

AN - SCOPUS:17444404249

SN - 0021-4922

VL - 44

SP - L41-L44

JO - Japanese Journal of Applied Physics

JF - Japanese Journal of Applied Physics

IS - 1-7

ER -

Characteristics of organic light-emitting devices by the surface treatment of indium tin oxide surfaces using atmospheric pressure plasmas

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Keywords

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