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Dmitry Baranov. Portrait.

Dmitry Baranov

Associate senior lecturer

Dmitry Baranov. Portrait.

Broad spectral photocurrent enhancement in Au-decorated CdSe nanowires

Author

  • Ritun Chakraborty
  • Fanny Greullet
  • Chandramohan George
  • Dmitry Baranov
  • Enzo Di Fabrizio
  • Roman Krahne

Summary, in English

Metal-semiconductor hybrid nanostructures promise improved photoconductive performance due to plasmonic properties of the metal portions and intrinsic electric fields at the metal-semiconductor interface that possibly enhance charge separation. Here we report gold decorated CdSe nanowires as a novel functional material and investigate the influence of gold decoration on the lateral facets on the photoconductive properties. Gold decorated nanowires show typically an at least ten-fold higher photocurrent as compared to their bare counterparts. Interestingly, the photocurrent enhancement is wavelength independent, although the plasmon resonance related to the gold particles appears in the absorption spectra. Our experiments show that light scattering and Schottky fields associated with the metal-semiconductor interface are at the origin of the photocurrent enhancement.

Publishing year

2013-06-21

Language

English

Pages

5334-5340

Publication/Series

Nanoscale

Volume

5

Issue

12

Document type

Journal article

Publisher

Royal Society of Chemistry

Status

Published

ISBN/ISSN/Other

  • ISSN: 2040-3364