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Nanomaterials 2018, 8(5), 274; https://doi.org/10.3390/nano8050274

Self-Catalyzed CdTe Wires

1
Stephenson Institute for Renewable Energy, Physics Department, University of Liverpool, Liverpool L69 7XF, UK
2
Department of Physics, G.J. Russell Microscopy Facility, Durham University, South Road, Durham DH1 3LE, UK
Current Address: CTF SOLAR GmbH, Zur Wetterwarte 50, 01109 Dresden, Germany.
*
Author to whom correspondence should be addressed.
Received: 23 March 2018 / Revised: 20 April 2018 / Accepted: 23 April 2018 / Published: 25 April 2018
(This article belongs to the Special Issue Design and Development of Nanostructured Thin Films)
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Abstract

CdTe wires have been fabricated via a catalyst free method using the industrially scalable physical vapor deposition technique close space sublimation. Wire growth was shown to be highly dependent on surface roughness and deposition pressure, with only low roughness surfaces being capable of producing wires. Growth of wires is highly (111) oriented and is inferred to occur via a vapor-solid-solid growth mechanism, wherein a CdTe seed particle acts to template the growth. Such seed particles are visible as wire caps and have been characterized via energy dispersive X-ray analysis to establish they are single phase CdTe, hence validating the self-catalysation route. Cathodoluminescence analysis demonstrates that CdTe wires exhibited a much lower level of recombination when compared to a planar CdTe film, which is highly beneficial for semiconductor applications. View Full-Text
Keywords: CdTe; self-catalysed; wires CdTe; self-catalysed; wires
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Baines, T.; Papageorgiou, G.; Hutter, O.S.; Bowen, L.; Durose, K.; Major, J.D. Self-Catalyzed CdTe Wires. Nanomaterials 2018, 8, 274.

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