Synthesis and microstructural analysis of benzylthiol-functionalized Au nanocrystals

Floriana Vitale, Luciana Mirenghi, Emanuela Piscopiello, Maria Lucia Protopapa, Leander Tapfer, Cinzia Giannini, Antonietta Guagliardi, Antonio Cervellino, Giovanni Pellegrini, Enrico Trave, Giovanni Mattei, Paolo Mazzoldi, Dana Fratoddi, Maria Vittoria Russo

Research output: Contribution to conferencePaper

Abstract

We report on the synthesis and microstructural and microanalytical analysis of dodecanethiol and benzylthiol-stabilized Au nanoparticles (diameter range between 2 nm and 10 nm). Stable functionalized gold nanoparticles were synthesized by using two different routes: a two-phase liquid-liquid method and a one-phase method. The size, strain, shape and crystalline structure of the nanocrystals were determined by a full-pattern X-ray powder diffraction analysis and high-resolution electron microscopy. The chemical environment of the Au nanocrystals and their interaction with the thiols was investigated by X-ray photoelectron spectroscopy. Photoluminescence spectroscopy measurements show a characteristic IR emission at γ=960 nm of small sized Au nanocrystals (∼3 nm). The origin of this IR emission line seems to be correlated to the Au-S bonding and the size of the nanoparticles. © 2007 Materials Research Society.
Original languageEnglish
Publication statusPublished - 2007
Externally publishedYes
Event2006 MRS Fall Meeting - , United States
Duration: 1 Jan 2007 → …

Conference

Conference2006 MRS Fall Meeting
CountryUnited States
Period1/1/07 → …

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Vitale, F., Mirenghi, L., Piscopiello, E., Protopapa, M. L., Tapfer, L., Giannini, C., ... Russo, M. V. (2007). Synthesis and microstructural analysis of benzylthiol-functionalized Au nanocrystals. Paper presented at 2006 MRS Fall Meeting, United States.