Defect-Free, Highly Uniform Washable Transparent Electrodes Induced by Selective Light Irradiation

Zhaoyang Zhong, Kyoohee Woo, Inhyuk Kim, Hyuntae Kim, Pyeongsam Ko, Dongwoo Kang, Sin Kwon, Hyunchang Kim, Hongseok Youn, Joo Ho Moon

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A simple route to fabricate defect-free Ag-nanoparticle–carbon-nanotube composite-based high-resolution mesh flexible transparent conducting electrodes (FTCEs) is explored. In the selective photonic sintering-based patterning process, a highly soft rubber or thin plastic substrate is utilized to achieve close and uniform contact between the composite layer and photomask, with which uniform light irradiation can be obtained with diminished light diffraction. This well-controlled process results in developing a fine and uniform mesh pattern (≈12 μm). The mesh patternability is confirmed to be dependent on heat distribution in the selectively light-irradiated film and the pattern design for FTCE could be adopted for more precise patterns with desired performance. Moreover, using a very thin substrate could allow the mesh to be positioned closer to the strain-free neutral mechanical plane. Due to strong interfacial adhesion between the mesh pattern and substrate, the mesh FTCE could tolerate severe mechanical deformation without performance degradation. It is demonstrated that a transparent heater with fine mesh patterns on thin substrate can maintain stability after 100 repeated washing test cycles in which a variety of stress situations occurring in combination. The presented highly durable FTCE and simple fabrication processes may be widely adoptable for various flexible, large-area, and wearable optoelectronic devices.

Original languageEnglish
Article number1800676
JournalSmall
Volume14
Issue number21
DOIs
Publication statusPublished - 2018 May 24

Fingerprint

Electrodes
Irradiation
Light
Defects
Substrates
Optics and Photonics
Nanotubes
Photomasks
Rubber
Composite materials
Washing
Optoelectronic devices
Photonics
Plastics
Sintering
Adhesion
Hot Temperature
Diffraction
Fabrication
Degradation

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)
  • Engineering (miscellaneous)

Cite this

Zhong, Zhaoyang ; Woo, Kyoohee ; Kim, Inhyuk ; Kim, Hyuntae ; Ko, Pyeongsam ; Kang, Dongwoo ; Kwon, Sin ; Kim, Hyunchang ; Youn, Hongseok ; Moon, Joo Ho. / Defect-Free, Highly Uniform Washable Transparent Electrodes Induced by Selective Light Irradiation. In: Small. 2018 ; Vol. 14, No. 21.
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Zhong, Z, Woo, K, Kim, I, Kim, H, Ko, P, Kang, D, Kwon, S, Kim, H, Youn, H & Moon, JH 2018, 'Defect-Free, Highly Uniform Washable Transparent Electrodes Induced by Selective Light Irradiation', Small, vol. 14, no. 21, 1800676. https://doi.org/10.1002/smll.201800676

Defect-Free, Highly Uniform Washable Transparent Electrodes Induced by Selective Light Irradiation. / Zhong, Zhaoyang; Woo, Kyoohee; Kim, Inhyuk; Kim, Hyuntae; Ko, Pyeongsam; Kang, Dongwoo; Kwon, Sin; Kim, Hyunchang; Youn, Hongseok; Moon, Joo Ho.

In: Small, Vol. 14, No. 21, 1800676, 24.05.2018.

Research output: Contribution to journalArticle

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AU - Zhong, Zhaoyang

AU - Woo, Kyoohee

AU - Kim, Inhyuk

AU - Kim, Hyuntae

AU - Ko, Pyeongsam

AU - Kang, Dongwoo

AU - Kwon, Sin

AU - Kim, Hyunchang

AU - Youn, Hongseok

AU - Moon, Joo Ho

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