Highly bendable transparent electrode using mesh patterned indium tin oxide for flexible electronic devices

Kosuke Sakamoto, Hiroyuki Kuwae, Naofumi Kobayashi, Atsuki Nobori, Shuichi Shoji, Jun Mizuno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We developed a highly bendable transparent indium tin oxide (ITO) electrode with mesh pattern for flexible electronic devices. Mesh pattern reduces an effect of tensile stress and propagation of cracks when the electrode is bent. The proposed ITO electrode was fabricated on a polyethylene terephthalate by means of photolithography and wet etching. The bendability was investigated through cyclic bending test. Resistance increase rate of the mesh patterned ITO electrode after 1000 times bending was approximately 9.18 × 102 times as low as that on a plane ITO electrode. In addition, the distinct cracks were not observed on the mesh patterned ITO electrode after cyclic bending. Mesh patterned ITO electrode was applied to a liquid-based organic light-emitting diode (OLED). Even the use of the mesh patterned ITO after 100 times bending, electroluminescence emission was confirmed without obvious damages. These results indicate that the mesh patterned ITO electrode gives an impact in flexible electronic devices.

Original languageEnglish
Title of host publication2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages323-326
Number of pages4
ISBN (Electronic)9781509030590
DOIs
Publication statusPublished - 2017 Aug 25
Event12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017 - Los Angeles, United States
Duration: 2017 Apr 92017 Apr 12

Other

Other12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017
CountryUnited States
CityLos Angeles
Period17/4/917/4/12

Keywords

  • Flexible electronic device
  • Flexible transparent conductive electrode
  • Indium Tin Oxide
  • Liquid-based organic light-emitting diode
  • Mesh patterned electrode

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation

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  • Cite this

    Sakamoto, K., Kuwae, H., Kobayashi, N., Nobori, A., Shoji, S., & Mizuno, J. (2017). Highly bendable transparent electrode using mesh patterned indium tin oxide for flexible electronic devices. In 2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017 (pp. 323-326). [8017034] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NEMS.2017.8017034