Synthesis of core-shell single-layer MoS2 sheathing gold nanoparticles, AuNP@1L-MoS2

Anna Lavie, Lena Yadgarov, Lothar Houben, Ronit Popovitz-Biro, Tal El Shaul, Achiya Nagler, Haim Suchowski, Reshef Tenne

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Nanoparticles, and more specifically gold nanoparticles (AuNPs), have attracted much scientific and technological interest in the last few decades. Their popularity is attributed to their unique optical, catalytic, electrical and magnetic properties when compared with the bulk. However, one of the main problems with AuNPs is their long-term stability. Two-dimensional materials like MoS2 (WS2) are semiconductors that exhibit a combination of properties which make them suitable for electronic, optical and (photo)catalytic devices. Few-layer MoS2 (WS2) nanoparticles (NPs), and in particular single-layer ones, show intriguing optical and electrical properties which are very different from those of the bulk compounds. Here we demonstrate the synthesis of AuNPs sheathed by a single layer of MoS2 (WS2), i.e. a core-shell nanostructure (AuNP@1L-MoS2). The hybrid NPs exhibit optical properties that are different from those of either constituent and are amenable for modulation via their chemistry, offering a myriad of applications.

Original languageEnglish
Article number24LT03
JournalNanotechnology
Volume28
Issue number24
DOIs
StatePublished - 23 May 2017
Externally publishedYes

Keywords

  • 2D materials
  • metal-semiconductor interactions
  • nanocomposites
  • nanoparticle synthesis
  • nanoparticles

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