Broad spectral photocurrent enhancement in Au-decorated CdSe nanowires

Handle URI:
http://hdl.handle.net/10754/562509
Title:
Broad spectral photocurrent enhancement in Au-decorated CdSe nanowires
Authors:
Chakraborty, Ritun; Greullet, Fanny; George, Chandramohan; Baranov, Dmitry; Di Fabrizio, Enzo M. ( 0000-0001-5886-4678 ) ; Krahne, Roman
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 scattering and Schottky fields associated with the metal-semiconductor interface are at the origin of the photocurrent enhancement. © 2013 The Royal Society of Chemistry.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Nanoscale
Issue Date:
2013
DOI:
10.1039/c3nr00752a
Type:
Article
ISSN:
20403364
Sponsors:
The SPCM measurements were performed using LABVIEW so. ware developed by Dr. Stefan Kudera. The work was supported by the European Commissions Seventh Framework Program via the NANOANTENNA project (Contract Number: F5-2009 241818).
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorChakraborty, Ritunen
dc.contributor.authorGreullet, Fannyen
dc.contributor.authorGeorge, Chandramohanen
dc.contributor.authorBaranov, Dmitryen
dc.contributor.authorDi Fabrizio, Enzo M.en
dc.contributor.authorKrahne, Romanen
dc.date.accessioned2015-08-03T10:40:45Zen
dc.date.available2015-08-03T10:40:45Zen
dc.date.issued2013en
dc.identifier.issn20403364en
dc.identifier.doi10.1039/c3nr00752aen
dc.identifier.urihttp://hdl.handle.net/10754/562509en
dc.description.abstractMetal-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. © 2013 The Royal Society of Chemistry.en
dc.description.sponsorshipThe SPCM measurements were performed using LABVIEW so. ware developed by Dr. Stefan Kudera. The work was supported by the European Commissions Seventh Framework Program via the NANOANTENNA project (Contract Number: F5-2009 241818).en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleBroad spectral photocurrent enhancement in Au-decorated CdSe nanowiresen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.identifier.journalNanoscaleen
dc.contributor.institutionIstituto Italiano di Tecnologia (IIT), Via Morego 30, Genova, Italyen
dc.contributor.institutionDepartment of Chemistry and Biochemistry, University of Colorado at Boulder, UCB 215, Boulder, CO 80309, United Statesen
dc.contributor.institutionBIONEM Lab, University of Magna Graecia, Viale Europa, 88100 Germaneto-Catanzaro, Italyen
kaust.authorDi Fabrizio, Enzo M.en
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