Surface potential behaviors of UV treated of Ag anode for high-performance T-OLED by nanotribology

Soo In Kim; Hwan Won Oh; Jin Woo Huh; Byeongkwon Ju; Chang Woo Lee

doi:10.1016/j.tsf.2011.04.046

Surface potential behaviors of UV treated of Ag anode for high-performance T-OLED by nanotribology

Soo In Kim, Hwan Won Oh, Jin Woo Huh, Byeongkwon Ju, Chang Woo Lee

School of Electrical Engineering

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

13 Citations (Scopus)

Abstract

A high reflective bottom anode is essential for high-performance top-emitting organic light emitting devices (OLEDs). Ag has high reflectivity for visible light but its electronic properties are not ideal for anodes of OLEDs. Thus, we investigated the UV treatment effect of Ag film with a thin silver oxide layer at the surface for application of top-emitting OLEDs. In this study, we measured the change of potential difference between Ag film and ITO (indium tin oxide) films, according to UV treatment time and the mechanical properties by KPFM (Kelvin Probe Force Microscope) method and nano-indenter system, respectively. The KPFM and nano-indenter results show that the differences of surface potential and surface volume change according to UV treatment time.

Original language	English
Pages (from-to)	6872-6875
Number of pages	4
Journal	Thin Solid Films
Volume	519
Issue number	20
DOIs	https://doi.org/10.1016/j.tsf.2011.04.046
Publication status	Published - 2011 Aug 1

Keywords

Ag anode
Indium tin oxide (ITO)
KPFM (Kelvin Probe Force Microscope)
Nano-indenter
Nanotribology
OLED
UV treatment
Work function

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/j.tsf.2011.04.046

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@article{bd0746b5e6394c32aa31b707f3699202,

title = "Surface potential behaviors of UV treated of Ag anode for high-performance T-OLED by nanotribology",

abstract = "A high reflective bottom anode is essential for high-performance top-emitting organic light emitting devices (OLEDs). Ag has high reflectivity for visible light but its electronic properties are not ideal for anodes of OLEDs. Thus, we investigated the UV treatment effect of Ag film with a thin silver oxide layer at the surface for application of top-emitting OLEDs. In this study, we measured the change of potential difference between Ag film and ITO (indium tin oxide) films, according to UV treatment time and the mechanical properties by KPFM (Kelvin Probe Force Microscope) method and nano-indenter system, respectively. The KPFM and nano-indenter results show that the differences of surface potential and surface volume change according to UV treatment time.",

keywords = "Ag anode, Indium tin oxide (ITO), KPFM (Kelvin Probe Force Microscope), Nano-indenter, Nanotribology, OLED, UV treatment, Work function",

author = "Kim, {Soo In} and Oh, {Hwan Won} and Huh, {Jin Woo} and Byeongkwon Ju and Lee, {Chang Woo}",

note = "Funding Information: This work was supported by research program 2010 of Kookmin University in Korea.",

year = "2011",

month = aug,

day = "1",

doi = "10.1016/j.tsf.2011.04.046",

language = "English",

volume = "519",

pages = "6872--6875",

journal = "Thin Solid Films",

issn = "0040-6090",

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number = "20",

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TY - JOUR

T1 - Surface potential behaviors of UV treated of Ag anode for high-performance T-OLED by nanotribology

AU - Kim, Soo In

AU - Oh, Hwan Won

AU - Huh, Jin Woo

AU - Ju, Byeongkwon

AU - Lee, Chang Woo

N1 - Funding Information: This work was supported by research program 2010 of Kookmin University in Korea.

PY - 2011/8/1

Y1 - 2011/8/1

N2 - A high reflective bottom anode is essential for high-performance top-emitting organic light emitting devices (OLEDs). Ag has high reflectivity for visible light but its electronic properties are not ideal for anodes of OLEDs. Thus, we investigated the UV treatment effect of Ag film with a thin silver oxide layer at the surface for application of top-emitting OLEDs. In this study, we measured the change of potential difference between Ag film and ITO (indium tin oxide) films, according to UV treatment time and the mechanical properties by KPFM (Kelvin Probe Force Microscope) method and nano-indenter system, respectively. The KPFM and nano-indenter results show that the differences of surface potential and surface volume change according to UV treatment time.

AB - A high reflective bottom anode is essential for high-performance top-emitting organic light emitting devices (OLEDs). Ag has high reflectivity for visible light but its electronic properties are not ideal for anodes of OLEDs. Thus, we investigated the UV treatment effect of Ag film with a thin silver oxide layer at the surface for application of top-emitting OLEDs. In this study, we measured the change of potential difference between Ag film and ITO (indium tin oxide) films, according to UV treatment time and the mechanical properties by KPFM (Kelvin Probe Force Microscope) method and nano-indenter system, respectively. The KPFM and nano-indenter results show that the differences of surface potential and surface volume change according to UV treatment time.

KW - Ag anode

KW - Indium tin oxide (ITO)

KW - KPFM (Kelvin Probe Force Microscope)

KW - Nano-indenter

KW - Nanotribology

KW - OLED

KW - UV treatment

KW - Work function

UR - http://www.scopus.com/inward/record.url?scp=80051549467&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2011.04.046

DO - 10.1016/j.tsf.2011.04.046

M3 - Article

AN - SCOPUS:80051549467

SN - 0040-6090

VL - 519

SP - 6872

EP - 6875

JO - Thin Solid Films

JF - Thin Solid Films

IS - 20

ER -

Surface potential behaviors of UV treated of Ag anode for high-performance T-OLED by nanotribology

Abstract

Keywords

ASJC Scopus subject areas

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