Tin-doped indium oxide films for highly flexible transparent conducting electrodes

Hee Jung Park, Joohee Kim, Jong Han Won, Gyoung Soon Choi, Yun Tak Lim, Jae Soo Shin, Jang-Ung Park

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

With the recent growing interest in flexible electronics, many studies are being conducted on flexible transparent conducting electrodes (TCE) such as Ag nanowires, Ag nanomeshes, carbon nanotubes, and graphenes. However, it will take time for such technologies to replace Sn-doped In2O3 (ITO), which is now widely used, due to challenges with reliability, mass-production, cost, and industry infrastructure. In this study, ITO films with different thicknesses were deposited on a flexible polymer substrate to investigate their optical and electrical properties and flexibility as a function of film thickness. Regardless of thickness, the ITO films' transmittance was about 80% at ~ 550 nm wavelength. The sheet resistances of all films were below 100 Ω/sq although resistance increased with decreasing film thickness. As a result of bending tests, it was found that thinner films had a higher threshold against bending strain. The sheet resistances did not significantly change above a bending radius of ~ 5 mm. In particular, the 50 nm-thick ITO film endured to a bending radius of ~ 3 mm, showing that it is a viable transparent electrode for flexible optoelectronics.

Original languageEnglish
Pages (from-to)8-12
Number of pages5
JournalThin Solid Films
Volume615
DOIs
Publication statusPublished - 2016 Sep 30

Fingerprint

Tin
ITO (semiconductors)
indium oxides
Indium
Oxide films
oxide films
tin
conduction
Electrodes
electrodes
Sheet resistance
Film thickness
film thickness
Flexible electronics
Carbon Nanotubes
production costs
radii
Bending tests
Optoelectronic devices
Nanowires

All Science Journal Classification (ASJC) codes

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

Cite this

Park, Hee Jung ; Kim, Joohee ; Won, Jong Han ; Choi, Gyoung Soon ; Lim, Yun Tak ; Shin, Jae Soo ; Park, Jang-Ung. / Tin-doped indium oxide films for highly flexible transparent conducting electrodes. In: Thin Solid Films. 2016 ; Vol. 615. pp. 8-12.
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Tin-doped indium oxide films for highly flexible transparent conducting electrodes. / Park, Hee Jung; Kim, Joohee; Won, Jong Han; Choi, Gyoung Soon; Lim, Yun Tak; Shin, Jae Soo; Park, Jang-Ung.

In: Thin Solid Films, Vol. 615, 30.09.2016, p. 8-12.

Research output: Contribution to journalArticle

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