Nano Research

, Volume 6, Issue 2, pp 121–130

Fabrication of Noble metal-semiconductor hybrid nanostructures using phase transfer

  • Tanushree Bala
  • Ajay Singh
  • Ambarish Sanyal
  • Catriona O’Sullivan
  • Fathima Laffir
  • Claudia Coughlan
  • Kevin M. Ryan
Research Article

DOI: 10.1007/s12274-013-0287-9

Cite this article as:
Bala, T., Singh, A., Sanyal, A. et al. Nano Res. (2013) 6: 121. doi:10.1007/s12274-013-0287-9

Abstract

An easy and effective solution based procedure for the synthesis of noble metal (both Au and Ag) tipped semiconductor nanomaterials is demonstrated where the metal precursors are taken in water and the semiconductors in organic medium, exploiting the phase transfer and reducing capability of suitably chosen ligands. The phase tranfer route is a generalised approach to form either Ag or Au tips on cadmium chalcogenide nanoparticles and nanorods. While multiple dots of noble metals are formed on the semiconductor nanomaterials initially, these coalesce into larger islands with time. The hybrids are characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), photoluminescence (PL), ultraviolet-visible spectroscopy (UV-vis) and X-ray photoelectron spectroscopy (XPS). A detailed FTIR analysis was also carried out to delineate the role of the ligands in the synthesis.

Graphical abstract

Keywords

semiconductor-metal hybrids Ag tips Au tips phase transfer 

Supplementary material

12274_2013_287_MOESM1_ESM.pdf (882 kb)
Supplementary material, approximately 882 KB.

Copyright information

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Tanushree Bala
    • 1
  • Ajay Singh
    • 1
    • 2
  • Ambarish Sanyal
    • 1
  • Catriona O’Sullivan
    • 1
  • Fathima Laffir
    • 1
  • Claudia Coughlan
    • 1
    • 2
  • Kevin M. Ryan
    • 1
    • 2
  1. 1.Materials and Surface Science Institute and Department of Chemical and Environmental SciencesUniversity of LimerickLimerickIreland
  2. 2.SFI-Strategic Research Cluster in Solar Energy ResearchUniversity of LimerickLimerickIreland
  3. 3.Department of ChemistryUniversity of CalcuttaKolkataIndia
  4. 4.Anusandhan BhawanCSIR-HQNew DelhiIndia

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