Broad spectral photocurrent enhancement in Au-decorated CdSe nanowires
Chakraborty, Ritun ; Greullet, Fanny ; George, Chandramohan ; Baranov, Dmitry LU
; Di Fabrizio, Enzo
and Krahne, Roman
(2013)
In Nanoscale
5(12).
p.5334-5340
- Abstract
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... (More)
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.
(Less)
- author
- Chakraborty, Ritun
; Greullet, Fanny
; George, Chandramohan
; Baranov, Dmitry
LU
; Di Fabrizio, Enzo
and Krahne, Roman
- publishing date
- 2013-06-21
- type
- Contribution to journal
- publication status
- published
- in
- Nanoscale
- volume
- 5
- issue
- 12
- pages
- 7 pages
- publisher
- Royal Society of Chemistry
- external identifiers
-
- scopus:84878745861
- ISSN
- 2040-3364
- DOI
- 10.1039/c3nr00752a
- language
- English
- LU publication?
- no
- id
- 9fc69293-6cee-4c6b-b23c-9a8d5eb913f3
- date added to LUP
- 2023-01-18 09:34:15
- date last changed
- 2023-02-14 10:35:16
@article{9fc69293-6cee-4c6b-b23c-9a8d5eb913f3,
abstract = {{<p>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.</p>}},
author = {{Chakraborty, Ritun and Greullet, Fanny and George, Chandramohan and Baranov, Dmitry and Di Fabrizio, Enzo and Krahne, Roman}},
issn = {{2040-3364}},
language = {{eng}},
month = {{06}},
number = {{12}},
pages = {{5334--5340}},
publisher = {{Royal Society of Chemistry}},
series = {{Nanoscale}},
title = {{Broad spectral photocurrent enhancement in Au-decorated CdSe nanowires}},
url = {{http://dx.doi.org/10.1039/c3nr00752a}},
doi = {{10.1039/c3nr00752a}},
volume = {{5}},
year = {{2013}},
}