Self-Catalyzed CdTe Wires

Baines, Tom, Papageorgiou, Giorgos, Hutter, Oliver, Bowen, Leon, Durose, Ken and Major, Jonathan (2018) Self-Catalyzed CdTe Wires. Nanomaterials, 8 (5). p. 274. ISSN 2079-4991

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Official URL: https://doi.org/10.3390/nano8050274

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.

Item Type: Article
Uncontrolled Keywords: CdTe, Self-catalysed, Wires
Subjects: F300 Physics
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Rachel Branson
Date Deposited: 09 Mar 2020 13:54
Last Modified: 09 Mar 2020 14:00
URI: http://nrl.northumbria.ac.uk/id/eprint/42419

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