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Nanoscale arrays of antimony telluride single crystals by selective chemical vapor deposition

Nanoscale arrays of antimony telluride single crystals by selective chemical vapor deposition
Nanoscale arrays of antimony telluride single crystals by selective chemical vapor deposition
Arrays of individual single nanocrystals of Sb2Te3 have been formed using selective chemical vapor deposition (CVD) from a single source precursor. Crystals are self-assembled reproducibly in confined spaces of 100?nm diameter with pitch down to 500?nm. The distribution of crystallite sizes across the arrays is very narrow (standard deviation of 15%) and is affected by both the hole diameter and the array pitch. The preferred growth of the crystals in the <1 1 0> orientation along the diagonal of the square holes strongly indicates that the diffusion of adatoms results in a near thermodynamic equilibrium growth mechanism of the nuclei. A clear relationship between electrical resistivity and selectivity is established across a range of metal selenides and tellurides, showing that conductive materials result in more selective growth and suggesting that electron donation is of critical importance for selective deposition
1-10
Huang, Ruomeng
c6187811-ef2f-4437-8333-595c0d6ac978
Benjamin, Sophie
1910f348-5d51-445b-bed5-ea886a873fe1
Gurnani, Chitra
18063024-d052-4fe3-8a79-fdecd227bc2c
Wang, Yudong
c48bcc7c-4cb4-468c-af4e-d1e601222009
Hector, Andrew
f19a8f31-b37f-4474-b32a-b7cf05b9f0e5
Levason, William
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd
Reid, Gill
37d35b11-40ce-48c5-a68e-f6ce04cd4037
de Groot, C.H. (Kees)
92cd2e02-fcc4-43da-8816-c86f966be90c
Huang, Ruomeng
c6187811-ef2f-4437-8333-595c0d6ac978
Benjamin, Sophie
1910f348-5d51-445b-bed5-ea886a873fe1
Gurnani, Chitra
18063024-d052-4fe3-8a79-fdecd227bc2c
Wang, Yudong
c48bcc7c-4cb4-468c-af4e-d1e601222009
Hector, Andrew
f19a8f31-b37f-4474-b32a-b7cf05b9f0e5
Levason, William
e7f6d7c7-643c-49f5-8b57-0ebbe1bb52cd
Reid, Gill
37d35b11-40ce-48c5-a68e-f6ce04cd4037
de Groot, C.H. (Kees)
92cd2e02-fcc4-43da-8816-c86f966be90c

Huang, Ruomeng, Benjamin, Sophie, Gurnani, Chitra, Wang, Yudong, Hector, Andrew, Levason, William, Reid, Gill and de Groot, C.H. (Kees) (2016) Nanoscale arrays of antimony telluride single crystals by selective chemical vapor deposition. Scientific Reports, 6, 1-10, [27593]. (doi:10.1038/srep27593).

Record type: Article

Abstract

Arrays of individual single nanocrystals of Sb2Te3 have been formed using selective chemical vapor deposition (CVD) from a single source precursor. Crystals are self-assembled reproducibly in confined spaces of 100?nm diameter with pitch down to 500?nm. The distribution of crystallite sizes across the arrays is very narrow (standard deviation of 15%) and is affected by both the hole diameter and the array pitch. The preferred growth of the crystals in the <1 1 0> orientation along the diagonal of the square holes strongly indicates that the diffusion of adatoms results in a near thermodynamic equilibrium growth mechanism of the nuclei. A clear relationship between electrical resistivity and selectivity is established across a range of metal selenides and tellurides, showing that conductive materials result in more selective growth and suggesting that electron donation is of critical importance for selective deposition

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Huang et al._Nanoscale arrays of antimony telluride single crystals by selective chemical vapor deposition.pdf - Accepted Manuscript
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srep27593-1.pdf - Version of Record
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More information

Accepted/In Press date: 20 May 2016
e-pub ahead of print date: 10 June 2016
Published date: 10 June 2016
Organisations: Nanoelectronics and Nanotechnology, Organic Chemistry: SCF

Identifiers

Local EPrints ID: 396933
URI: http://eprints.soton.ac.uk/id/eprint/396933
PURE UUID: f2043aa8-8210-4f96-adba-2e48cef2041e
ORCID for Andrew Hector: ORCID iD orcid.org/0000-0002-9964-2163
ORCID for William Levason: ORCID iD orcid.org/0000-0003-3540-0971
ORCID for Gill Reid: ORCID iD orcid.org/0000-0001-5349-3468
ORCID for C.H. (Kees) de Groot: ORCID iD orcid.org/0000-0002-3850-7101

Catalogue record

Date deposited: 16 Jun 2016 09:32
Last modified: 17 Mar 2021 02:37

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