Albarkaty, KS, Kumi Barimah, E orcid.org/0000-0003-4841-9866, Zhang, J et al. (2 more authors) (2022) Femtosecond Laser Deposition of Germanium Selenide onto Silicon Platform at Different Substrate Temperatures. Nanomaterials. ISSN 2079-4991
Abstract
Germanium selenide (GeSe) thin films were fabricated by employing femtosecond pulsed-laser deposition (fs-PLD) on silicon (100) substrates at various substrate temperatures, ranging from 25 °C to 600 °C. The thin films’ surface morphology qualities and optical properties were studied by utilising transmission electron microscopy (TEM) and X-ray diffraction (XRD). The X-ray diffraction result signifies that the thin films deposited on the silicon at a substrate temperature below 400 °C were amorphous Ge-Se. In contrast, those grown at 400 °C and above exhibited crystallised peaks of Ge-Se orthorhombic and tetragonal structures. The deposition growth rate of the thin films was also found to decrease substantially with increasing substrate temperature. These results show that the fs-PLD process has great potential for fabricating good quality Ge-Se thin film. This technique could enable the manufacture of modern optoelectronic devices for applications in optical communication, sensing, and ovonic threshold switching for the high-density crossbar memory array.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Keywords: | femtosecond pulsed-laser deposition; chalcogenide glass; germanium selenide (GeSe4) |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 14 Jun 2022 11:36 |
Last Modified: | 14 Jun 2022 11:36 |
Status: | Published |
Publisher: | MDPI |
Identification Number: | 10.3390/nano12122003 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:187891 |