Structural, Optical and Electrical Properties of Al+MoO3 and Au+MoO3 Thin Films Prepared by Magnetron Codeposition

Scientific paper - Original scientific paper

• Author: Tihomir Car
• Author: Ivan Jakovac
• Author: Ivana Šarić
• Author: Sigrid Bernstorff
• Author: Maja Mičetić
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

Structural, optical and electrical properties of Al+MoO3 and Au+MoO3 thin films prepared by simultaneous magnetron sputtering deposition were investigated. The influence of MoO3 sputtering power on the Al and Au nanoparticle formation and spatial distribution was explored. We demonstrated the formation of spatially arranged Au nanoparticles in the MoO3 matrix, while Al incorporates in the MoO3 matrix without nanoparticle formation. The dependence of the Au nanoparticle size and arrangement on the MoO3 sputtering power was established. The Al-based films show a decrease of overall absorption with an Al content increase, while the Au-based films have the opposite trend. The transport properties of the investigated films also are completely different. The resistivity of the Al-based films increases with the Al content, while it decreases with the Au content increase. The reason is a different transport mechanism that occurs in the films due to their different structural properties. The choice of the incorporated material (Al or Au) and its volume percentage in the MoO3 matrix enables the design of materials with desirable optical and electrical characteristics for a variety of applications.

• Keywords (english): Aluminum; Film preparation; Gold; Gold nanoparticles; Molybdenum oxide; Nanoparticles; Sputtering
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Materials
• Numbering: vol. 14, no. 4, 766
• e-ISSN: 1996-1944
• DOI: https://doi.org/10.3390/ma14040766
• URN:NBN: urn:nbn:hr:217:704819
• Publication: 2021-02-06
• Project: Number: IP-2018-01-3633; Title (croatian): 3D mreže kompleksnih Ge-baziranih nanostruktura u staklima: svojstva i primjene; Title (english): 3D Networks of complex Ge-based nanostructures in glasses: properties and applications; Acronym: NetNano; Leader: Maja Mičetić; Jurisdiction: Croatia; Funding stream: Research Projects
• Document URL: https://www.mdpi.com/1996-1944/14/4/766
• Type of resource: Text
• Access conditions: Open access
• Public note: © 2021 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/). Received: 31 December 2020. Accepted: 2 February 2021. Published: 6 February 2021.
• Created on: 2024-09-25 21:02:56