Skip to main content

Research Repository

Advanced Search

Epitaxial growth of γ-InSe and α, β, and γ-In2Se3 on ε-GaSe

Balakrishnan, Nilanthy; Steer, Elisabeth D; Smith, Emily F; Kudrynskyi, Zakhar R; Kovalyuk, Zakhar D; Eaves, Laurence; Patanè, Amalia; Beton, Peter H

Epitaxial growth of γ-InSe and α, β, and γ-In2Se3 on ε-GaSe Thumbnail


Authors

Elisabeth D Steer

Emily F Smith

Zakhar R Kudrynskyi

Zakhar D Kovalyuk

Laurence Eaves

Amalia Patanè

Peter H Beton



Abstract

We demonstrate that ?-InSe and the a, ß and ? phases of In2Se3 can be grown epitaxially on e-GaSe substrates using a physical vapour transport method. By exploiting the temperature gradient within the tube furnace, we can grow selectively different phases of InxSey depending on the position of the substrate within the furnace. The uniform cleaved surface of e-GaSe enables the epitaxial growth of the InxSey layers, which are aligned over large areas. The InxSey epilayers are characterised using Raman, photoluminescence, x-ray photoelectron and electron dispersive x-ray spectroscopies. Each InxSey phase and stoichiometry exhibits distinct optical and vibrational properties, providing a tuneable photoluminescence emission range from 1.3?eV to ~2?eV suitable for exploitation in electronics and optoelectronics.

Citation

Balakrishnan, N., Steer, E. D., Smith, E. F., Kudrynskyi, Z. R., Kovalyuk, Z. D., Eaves, L., …Beton, P. H. (2018). Epitaxial growth of γ-InSe and α, β, and γ-In2Se3 on ε-GaSe. 2D Materials, 5, Article 035026. https://doi.org/10.1088/2053-1583/aac479

Journal Article Type Article
Acceptance Date May 14, 2018
Publication Date Jun 1, 2018
Publicly Available Date May 26, 2023
Journal 2D Materials
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 5
Article Number 035026
Series Title Flatlands beyond graphene 2018
DOI https://doi.org/10.1088/2053-1583/aac479
Keywords indium selenide, III–VI van der Waals layered crystals, 2D materials, physical vapour transport
Public URL https://keele-repository.worktribe.com/output/417808
Publisher URL https://iopscience.iop.org/article/10.1088/2053-1583/aac479

Files





You might also like



Downloadable Citations