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, Byeong Kwon Ju, Chang Woo Lee

Research output: Contribution to journalArticle

12 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 languageEnglish
Pages (from-to)6872-6875
Number of pages4
JournalThin Solid Films
Volume519
Issue number20
DOIs
Publication statusPublished - 2011 Aug 1

Fingerprint

Nanotribology
Surface potential
Anodes
anodes
Microscopes
microscopes
Silver oxides
silver oxides
probes
Tin oxides
Electronic properties
indium oxides
Indium
tin oxides
Oxide films
oxide films
mechanical properties
reflectance
Mechanical properties
electronics

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
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Surface potential behaviors of UV treated of Ag anode for high-performance T-OLED by nanotribology. / Kim, Soo In; Oh, Hwan Won; Huh, Jin Woo; Ju, Byeong Kwon; Lee, Chang Woo.

In: Thin Solid Films, Vol. 519, No. 20, 01.08.2011, p. 6872-6875.

Research output: Contribution to journalArticle

Kim, Soo In ; Oh, Hwan Won ; Huh, Jin Woo ; Ju, Byeong Kwon ; Lee, Chang Woo. / Surface potential behaviors of UV treated of Ag anode for high-performance T-OLED by nanotribology. In: Thin Solid Films. 2011 ; Vol. 519, No. 20. pp. 6872-6875.
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