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Vapor-Liquid-Solid Growth of Cadmium Telluride Nanowires by Close-Space-Sublimation for Photovoltaic Applications

Published online by Cambridge University Press:  22 June 2011

B. L. Williams ,
B. Mendis ,
L. Bowen ,
D. P. Halliday  and
K. Durose
B. L. Williams*
Affiliation:
Department of Physics, Durham University, South Road, Durham, DH1 3LE UK Now at the Stephenson Institute for Renewable Energy, University of Liverpool. L69 7ZF
B. Mendis
Affiliation:
Department of Physics, Durham University, South Road, Durham, DH1 3LE UK
L. Bowen
Affiliation:
Department of Physics, Durham University, South Road, Durham, DH1 3LE UK
D. P. Halliday
Affiliation:
Department of Physics, Durham University, South Road, Durham, DH1 3LE UK
K. Durose
Affiliation:
Department of Physics, Durham University, South Road, Durham, DH1 3LE UK Now at the Stephenson Institute for Renewable Energy, University of Liverpool. L69 7ZF
*
* Corresponding author, email: b.l.williams@liverpool.ac.uk
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Abstract

Arrays of CdTe nanowires have been grown on conductive, flexible Mo substrates by the vapor-liquid-solid technique. A method of forming the arrays on a largely continuous CdTe film is described. For producing nanowire solar cells, this structure provides the advantage of preventing shunts. Nanowires having diameters in the range 100-500 nm and lengths up to 100 μm were generated. The influence of growth temperature, time and pressure on the morphology of deposited layers was investigated, and a mechanism for the generation of layer/nanowire combinations is postulated. Characterization by SEM, TEM and low temperature photoluminescence is presented.

Keywords

nanostructurephotovoltaicII-VI

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1350: Symposium EE – Semiconductor Nanowires—From Fundamentals to Applications , 2011 , mrss11-1350-ee06-25
Copyright
Copyright © Materials Research Society 2011

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References

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