Large patternable metal nanoparticle sheets by photo/e-beam lithography

Noboru Saito, Pangpang Wang, Koichi Okamoto, Soh Ryuzaki, Kaoru Tamada

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Techniques for micro/nano-scale patterning of large metal nanoparticle sheets can potentially be used to realize high-performance photoelectronic devices because the sheets provide greatly enhanced electrical fields around the nanoparticles due to localized surface plasmon resonances. However, no single metal nanoparticle sheet currently exists with sufficient durability for conventional lithographical processes. Here, we report large photo and/or e-beam lithographic patternable metal nanoparticle sheets with improved durability by incorporating molecular cross-linked structures between nanoparticles. The cross-linked structures were easily formed by a one-step chemical reaction; immersing a single nanoparticle sheet consisting of core metals, to which capping molecules ionically bond, in a dithiol ethanol solution. The ligand exchange reaction processes were discussed in detail, and we demonstrated 20 μm wide line and space patterns, and a 170 nm wide line of the silver nanoparticle sheets.

Original languageEnglish
Article number435705
JournalNanotechnology
Volume28
Issue number43
DOIs
Publication statusPublished - Oct 4 2017

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Metal nanoparticles
Lithography
Nanoparticles
Durability
Surface plasmon resonance
Silver
Chemical reactions
Ion exchange
Ethanol
Metals
Ligands
Molecules

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Large patternable metal nanoparticle sheets by photo/e-beam lithography. / Saito, Noboru; Wang, Pangpang; Okamoto, Koichi; Ryuzaki, Soh; Tamada, Kaoru.

In: Nanotechnology, Vol. 28, No. 43, 435705, 04.10.2017.

Research output: Contribution to journalArticle

Saito, Noboru ; Wang, Pangpang ; Okamoto, Koichi ; Ryuzaki, Soh ; Tamada, Kaoru. / Large patternable metal nanoparticle sheets by photo/e-beam lithography. In: Nanotechnology. 2017 ; Vol. 28, No. 43.
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