Effect of supersonic spraying impact velocity on opto-electric properties of transparent conducting flexible films consisting of silver nanowire, ITO, and polyimide multilayers

Tae Gun Kim, Jong Gun Lee, Chan Woo Park, Hong Seok Jo, Min Woo Kim, Maikel F.A.M. van Hest, Dae Hyung Cho, Yong Duck Chung, Suk Goo Yoon

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We demonstrate the use of supersonic spraying for the deposition of silver nanowires (AgNWs) on a flexible polyimide (PI) substrate for the formation of transparent and conducting films (TCF) as an alternative to nonflexible ITO (indium tin oxide). The self-fused intersections of the NWs resulted in films with a low sheet resistance (Rs = 31 Ω/sq) and fairly high transmittance (Tr = 92%) on a glass substrate. The effect of the impact speed of the supersonically sprayed AgNWs on the opto-electric properties of the flexible TCF was evaluated by varying the spray coating conditions. The fabricated films were characterized by X-ray diffraction analysis, atomic force microscopy, ultraviolet–visible spectroscopy, and scanning electron microscopy. Finally, cyclic bending tests were performed on the PI/AgNW films as well as PI/ZnO/indium tin oxide/AgNW films, and the changes in their electrical properties with bending were compared.

Original languageEnglish
Pages (from-to)653-659
Number of pages7
JournalJournal of Alloys and Compounds
Volume739
DOIs
Publication statusPublished - 2018 Mar 30

Keywords

  • Flexible substrate
  • Self-fusion
  • Silver nanowires
  • Supersonic spray
  • Transparent conducting film

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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