Self-Catalyzed CdTe Wires

Baines, Tom; Papageorgiou, Giorgos; Hutter, Oliver; Bowen, Leon; Durose, Ken; Major, Jonathan

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.

Citation

Baines, T., Papageorgiou, G., Hutter, O., Bowen, L., Durose, K., & Major, J. (2018). Self-Catalyzed CdTe Wires. Nanomaterials, 8(5), Article 274. https://doi.org/10.3390/nano8050274

• Journal Article Type: Article
• Acceptance Date: Apr 23, 2018
• Online Publication Date: Apr 25, 2018
• Publication Date: Apr 25, 2018
• Deposit Date: Jun 7, 2018
• Publicly Available Date: Jun 8, 2018
• Journal: Nanomaterials
• Electronic ISSN: 2079-4991
• Publisher: MDPI
• Peer Reviewed: Peer Reviewed
• Volume: 8
• Issue: 5
• Article Number: 274
• DOI: https://doi.org/10.3390/nano8050274
• Public URL: https://durham-repository.worktribe.com/output/1324798