Highly Conductive Paper/Textile Electrodes Using Ligand Exchange Reaction-Induced in Situ Metallic Fusion

Sungkun Kang, Donghyeon Nam, Jimin Choi, Jongkuk Ko, Donghee Kim, Cheong Hoon Kwon, June Huh, Jinhan Cho

Research output: Contribution to journalArticle

Abstract

Here, we report that metal nanoparticle (NP)-based paper/textile electrodes with bulk metallic conductivity can be prepared via organic linker-modulated ligand exchange reaction and in situ room-temperature metallic fusion without additional chemical or thermal treatments. For this study, amine-functionalized molecule linkers instead of bulky polymer linkers were layer-by-layer (LbL)-assembled with tetraoctylammonium bromide (TOABr)-stabilized Au NPs to form Au NP multilayered films. By conversion of the amine groups of the organic molecule linkers from -NH 3 + to the -NH 2 groups, as well as by a decrease in the size of the organic linkers, the LbL-assembled Au NPs became highly interconnected and fused during LbL deposition, resulting in Au NP multilayers with adjustable conductivity and transport behavior. These phenomena were also predicted by a density functional theory investigation for the model system. Particularly, LbL-assembled films composed of TOABr-Au NPs and diethylenetriamine (M w : ∼104) exhibited a remarkable electrical conductivity of 2.2 × 10 5 S·cm -1 , which was higher than the electrical conductivity of the metal NP-based electrodes as well as the carbon material-based electrodes reported to date. Furthermore, based on our approach, a variety of insulating flexible papers and textiles were successfully converted into real metal-like paper and textile electrodes with high flexibility preserving their highly porous structure. This approach can provide a basis for further improving and controlling the electrical properties of flexible electrodes through the control of organic linkers.

Original languageEnglish
Pages (from-to)12032-12042
Number of pages11
JournalACS Applied Materials and Interfaces
Volume11
Issue number12
DOIs
Publication statusPublished - 2019 Mar 27

Fingerprint

Textiles
Fusion reactions
Ligands
Electrodes
Metal nanoparticles
Amines
Nanoparticles
Molecules
Density functional theory
Polymers
Multilayers
Electric properties
Carbon
Metals
Heat treatment
Temperature
Electric Conductivity
tetraoctylammonium bromide

Keywords

  • density functional theory
  • DETA ligand
  • ligand exchange reaction
  • metal nanoparticle
  • metallic fusion
  • metallic textile

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Highly Conductive Paper/Textile Electrodes Using Ligand Exchange Reaction-Induced in Situ Metallic Fusion. / Kang, Sungkun; Nam, Donghyeon; Choi, Jimin; Ko, Jongkuk; Kim, Donghee; Kwon, Cheong Hoon; Huh, June; Cho, Jinhan.

In: ACS Applied Materials and Interfaces, Vol. 11, No. 12, 27.03.2019, p. 12032-12042.

Research output: Contribution to journalArticle

Kang, Sungkun ; Nam, Donghyeon ; Choi, Jimin ; Ko, Jongkuk ; Kim, Donghee ; Kwon, Cheong Hoon ; Huh, June ; Cho, Jinhan. / Highly Conductive Paper/Textile Electrodes Using Ligand Exchange Reaction-Induced in Situ Metallic Fusion. In: ACS Applied Materials and Interfaces. 2019 ; Vol. 11, No. 12. pp. 12032-12042.
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