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Facile Synthesis of Semiconductor-Metal Hybrid Nanoparticles with an Anisotropic Structure

Published online by Cambridge University Press:  18 May 2016

Akira Ohnuma  and
Kouta Iwasaki
Akira Ohnuma
Affiliation:
Research Laboratories, Toyota Boshoku Corporation, Kariya, Aichi 448-8651, Japan
Kouta Iwasaki
Affiliation:
Research Laboratories, Toyota Boshoku Corporation, Kariya, Aichi 448-8651, Japan
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Abstract

Here we report a facile and versatile procedure for the preparation of semiconductor-metal hybrid nanoparticles with an anisotropic structure consisting of bismuth telluride (Bi2Te3) and gold (Au) (or silver (Ag)) nanoparticles. We simply added flake-shaped Bi2Te3 nanoparticles (Bi2Te3 nanoflakes) and trisodium citrate to an aqueous Au or Ag precursor solution heated to boiling. The edge part of the Bi2Te3 nanoflake was preferentially modified with Au or Ag nanoparticles, and the Bi2Te3-Au hybrid nanoparticles had a broad peak of light absorption around the visible region and a higher thermoelectric power factor than ordinary Bi2Te3 nanoflakes. Because of the simplicity of the procedure, the hybrid nanoparticles are expected to be used as a new class of functional materials in the large scale production.

Keywords

nanostructurecolloidchemical synthesis
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1748: Symposium II – Semiconductor Nanocrystals, Plasmonic Metal Nanoparticles, and Metal-Hybrid Structures , 2015 , mrsf14-2037508
Copyright
Copyright © Materials Research Society 2016 

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References

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