Jump to main content
Jump to site search

Issue 44, 2017
Previous Article Next Article

The strong dependence of the bi-functionalities of core–shell-like gold-based nanocomposites on the size of gold nanoparticles

Author affiliations

Abstract

In this work, gold nanoparticles (AuNPs) of various sizes (Aux, x = 32, 50, 68, 87 and 107 nm) were facially assembled with a glycine derivative (G6) and graphene quantum dots (GQDs), respectively. Subsequently, novel core–shell-like Aux/glycine derivative (G6)/graphene quantum dot (GQD) composites were achieved, which showed a strong dependence of their fluorescence and surface enhanced Raman scattering (SERS) response on the size of the AuNPs. It was indicated that the energy transfer efficiency between the photoexcited GQDs and AuNPs was closely dependent on the size of the AuNPs. Also, according to the comparative SERS response of crystal violet (CV) on Aux and Aux/G6/GQD substrates, it was demonstrated that the electromagnetic field of the AuNPs surface is also strongly dependent on the size of the AuNPs. Meanwhile, the synergetic effect between AuNPs and GQDs was helpful to control the SERS response of the Aux/G6/GQD substrate.

Graphical abstract: The strong dependence of the bi-functionalities of core–shell-like gold-based nanocomposites on the size of gold nanoparticles

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Aug 2017, accepted on 23 Oct 2017 and first published on 23 Oct 2017


Article type: Communication
DOI: 10.1039/C7TC03831C
Citation: J. Mater. Chem. C, 2017,5, 11411-11415
  •   Request permissions

    The strong dependence of the bi-functionalities of core–shell-like gold-based nanocomposites on the size of gold nanoparticles

    L. Qin, J. Liu, S. Kang, G. Li and X. Li, J. Mater. Chem. C, 2017, 5, 11411
    DOI: 10.1039/C7TC03831C

Search articles by author

Spotlight

Advertisements