Work

Preparation of CuWO4 films by thermal annealing of simultaneously RF/DC magnetron co-sputtered Cu–W films

Year: 2025

Type: article

Abstract: Tungstate-based compounds have attracted considerable attention for diverse applications in photocatalysis, optoelectronics, and energy-related fields due to their unique structural, optical, and electronic properties. This study investigates the formation, structural characterization, and optical properties of copper tungstate (CuWO4) thin films, synthesized through co-sputtering of metal precursors followed by thermal annealing at 600oC. Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were employed to analyze the films' surface morphology, phase composition, and chemical states. The results show formation of CuWO4 films with a highly crystalline triclinic structure. Raman and Fourier Transform Infrared (FTIR) spectroscopy further characterize the structural features of both systems, revealing the WO6 octahedral unit in each. The optical band gap of CuWO4 was found to be 2.09 eV, indicating a wide gap semiconductor with indirect transition.

Source: Ceramics International

DOI: 10.1016/j.ceramint.2025.07.093

Authors: Stefan Jovanovski, Maja Popović, Mirjana Novaković, Dragana Jugović, Marko Gloginjić, Mimoza Ristova

Institutions: Ss. Cyril and Methodius University in Skopje, University of Belgrade, Vinča Institute of Nuclear Sciences, Institute of Technical Sciences of SASA

Language: English

Topic: Transition Metal Oxide Nanomaterials

Subfield: Polymers and Plastics

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,830

Funders: Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja, Western Balkans Fund