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

doi:10.1109/NEMS.2017.8017034

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 Organization for Nano & Life Innovation

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	323-326
Number of pages	4
ISBN (Electronic)	9781509030590
DOIs	https://doi.org/10.1109/NEMS.2017.8017034
Publication status	Published - 2017 Aug 25
Event	12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017 - Los Angeles, United States Duration: 2017 Apr 9 → 2017 Apr 12

Other

Other	12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017
Country	United States
City	Los Angeles
Period	17/4/9 → 17/4/12

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

Access to Document

10.1109/NEMS.2017.8017034

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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

Highly bendable transparent electrode using mesh patterned indium tin oxide for flexible electronic devices. / Sakamoto, Kosuke; Kuwae, Hiroyuki; Kobayashi, Naofumi; Nobori, Atsuki; Shoji, Shuichi ; Mizuno, Jun.

2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 323-326 8017034.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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., 8017034, Institute of Electrical and Electronics Engineers Inc., pp. 323-326, 12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017, Los Angeles, United States, 17/4/9. https://doi.org/10.1109/NEMS.2017.8017034

Sakamoto K, Kuwae H, Kobayashi N, Nobori A, Shoji S , Mizuno J. 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. Institute of Electrical and Electronics Engineers Inc. 2017. p. 323-326. 8017034 https://doi.org/10.1109/NEMS.2017.8017034

Sakamoto, Kosuke ; Kuwae, Hiroyuki ; Kobayashi, Naofumi ; Nobori, Atsuki ; Shoji, Shuichi ; Mizuno, Jun. / Highly bendable transparent electrode using mesh patterned indium tin oxide for flexible electronic devices. 2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 323-326

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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.",

keywords = "Flexible electronic device, Flexible transparent conductive electrode, Indium Tin Oxide, Liquid-based organic light-emitting diode, Mesh patterned electrode",

author = "Kosuke Sakamoto and Hiroyuki Kuwae and Naofumi Kobayashi and Atsuki Nobori and Shuichi Shoji and Jun Mizuno",

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AU - Sakamoto, Kosuke

AU - Kuwae, Hiroyuki

AU - Kobayashi, Naofumi

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AU - Shoji, Shuichi

AU - Mizuno, Jun

PY - 2017/8/25

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N2 - 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.

AB - 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.

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KW - Flexible transparent conductive electrode

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KW - Liquid-based organic light-emitting diode

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