Transparent flexible electrodes based on junctionless copper nanowire network via selective electroless metallization of electrospun nanofibers

Andrea Testa, Roberto Bernasconi, Ryohei Yoshikawa, Issei Takenaka, Luca Magagnin, Seimei Shiratori

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A component that is able to transport charges while being transparent to light is fundamental in many devices, including LCD screens, touch panels and solar cells. The most common transparent electrode material is Indium Tin Oxide (ITO) due to its high performance, but the costly production techniques, the rarity of indium and its inherent fragility are pushing the market to look for alternatives. In this work, a facile method for the creation of a junctionless metal nanowire network as transparent electrodes using electrospinning and selective electroless deposition is proposed, without annealing steps or vacuum processes which is needed in conventional nanowire production. The method exploits the insertion of the electroless sensitizing agent into the electrospinning solution for selectively catalyzed metallization of the electrospun nanofiber template without hydrophobic treatments to substrates. The best optoelectronic properties are adequate to replace ITO: Rs = 35 Ω/□ and T = 90% with a very flat transmittance window.

Original languageEnglish
Pages (from-to)D764-D770
JournalJournal of the Electrochemical Society
Volume164
Issue number12
DOIs
Publication statusPublished - 2017

Fingerprint

Electrospinning
Nanofibers
Metallizing
Indium
Nanowires
Copper
Tin oxides
Electrodes
Touch screens
Electroless plating
Liquid crystal displays
Optoelectronic devices
Charge transfer
Solar cells
Metals
Vacuum
Annealing
Substrates
indium tin oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

Transparent flexible electrodes based on junctionless copper nanowire network via selective electroless metallization of electrospun nanofibers. / Testa, Andrea; Bernasconi, Roberto; Yoshikawa, Ryohei; Takenaka, Issei; Magagnin, Luca; Shiratori, Seimei.

In: Journal of the Electrochemical Society, Vol. 164, No. 12, 2017, p. D764-D770.

Research output: Contribution to journalArticle

Testa, Andrea ; Bernasconi, Roberto ; Yoshikawa, Ryohei ; Takenaka, Issei ; Magagnin, Luca ; Shiratori, Seimei. / Transparent flexible electrodes based on junctionless copper nanowire network via selective electroless metallization of electrospun nanofibers. In: Journal of the Electrochemical Society. 2017 ; Vol. 164, No. 12. pp. D764-D770.
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