Durability improvements of two-dimensional metal nanoparticle sheets by molecular cross-linked structures between nanoparticles

Noboru Saito, Sou Ryuzaki, Pangpang Wang, Susie Park, Nobuyuki Sakai, Tetsu Tatsuma, Koichi Okamoto, Kaoru Tamada

Research output: Contribution to journalArticlepeer-review

Abstract

The durability of two-dimensional metal nanoparticle sheets is a crucial factor for realizing next-generation optoelectronic devices based on plasmonics such as organic light-emitting diodes. Here, we report improvements in the durability of Ag nanoparticle sheets by forming alkanedithiol (DT16) cross-linked structures between the nanoparticles. The cross-linked structures in a sheet were fabricated by the self-assembly of DT16-capped Ag nanoparticles with 10% coverage (AgDT16). The durabilities for thermal, organic solvent, and oxidation reactions of AgDT16 sheets were found to be improved owing to the cross-linked structures by comparing Ag nanoparticle sheets without the cross-linked structures. The absorbance spectra revealed that the Ag nanoparticle sheets without the structure are markedly damaged by each durability test, whereas the AgDT16 sheets remain. The molecular cross-linked structures between nanoparticles in two-dimansional metal nanoparticle sheets were found to have the potential to play a key role in the realization of plasmonic optoelectronic devices including metal nanoparticles.

Original languageEnglish
Article number03EG10
JournalJapanese journal of applied physics
Volume57
Issue number3
DOIs
Publication statusPublished - 2018 Mar
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Durability improvements of two-dimensional metal nanoparticle sheets by molecular cross-linked structures between nanoparticles'. Together they form a unique fingerprint.

Cite this