Raman Study of Novel Walls-like Nanostructured WO3 Thin Films Grown by Spray Deposition

Andreea Gabriela Marina Popescu; Ioan Valentin Tudose; Cosmin Romanitan; Marian Popescu; Marina Manica; Paul Schiopu; Mirela Petruta Suchea; Cristina Pachiu

doi:10.20944/preprints202406.0431.v1

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preprints.org > chemistry and materials science > materials science and technology > doi: 10.20944/preprints202406.0431.v1

Preprint Communication Version 1 Preserved in Portico This version is not peer-reviewed

Raman Study of Novel Walls-like Nanostructured WO3 Thin Films Grown by Spray Deposition

Andreea Gabriela Marina Popescu

Mirela Petruta Suchea

^* ,

Cristina Pachiu

Version 1 : Received: 6 June 2024 / Approved: 6 June 2024 / Online: 7 June 2024 (08:05:23 CEST)

How to cite: Popescu, A. G. M.; Tudose, I. V.; Romanitan, C.; Popescu, M.; Manica, M.; Schiopu, P.; Suchea, M. P.; Pachiu, C. Raman Study of Novel Walls-like Nanostructured WO3 Thin Films Grown by Spray Deposition. Preprints 2024, 2024060431. https://doi.org/10.20944/preprints202406.0431.v1 Popescu, A. G. M.; Tudose, I. V.; Romanitan, C.; Popescu, M.; Manica, M.; Schiopu, P.; Suchea, M. P.; Pachiu, C. Raman Study of Novel Walls-like Nanostructured WO3 Thin Films Grown by Spray Deposition. Preprints 2024, 2024060431. https://doi.org/10.20944/preprints202406.0431.v1

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MDPI and ACS Style

Popescu, A. G. M.; Tudose, I. V.; Romanitan, C.; Popescu, M.; Manica, M.; Schiopu, P.; Suchea, M. P.; Pachiu, C. Raman Study of Novel Walls-like Nanostructured WO3 Thin Films Grown by Spray Deposition. Preprints 2024, 2024060431. https://doi.org/10.20944/preprints202406.0431.v1

APA Style

Popescu, A. G. M., Tudose, I. V., Romanitan, C., Popescu, M., Manica, M., Schiopu, P., Suchea, M. P., & Pachiu, C. (2024). Raman Study of Novel Walls-like Nanostructured WO3 Thin Films Grown by Spray Deposition. Preprints. https://doi.org/10.20944/preprints202406.0431.v1

Chicago/Turabian Style

Popescu, A. G. M., Mirela Petruta Suchea and Cristina Pachiu. 2024 "Raman Study of Novel Walls-like Nanostructured WO3 Thin Films Grown by Spray Deposition" Preprints. https://doi.org/10.20944/preprints202406.0431.v1

Abstract

Walls-like structured monoclinic WO3 thin films were obtained by spray deposition method for further integration in gas sensors. For sensing applications, it is very important to achieve a high surface-to-volume ratio surface together with a proper thin films structure. The present communication reports on the effect of the sprayed solution volume variation (as a thickness variation element) on the detailed Raman spectroscopy for WO3 thin films with different thicknesses grown from precursor solutions with two different concentrations. Detailed analysis of the two series of samples shows that the growing thickness strongly affects the films morphology while their crystalline structure is only slightly affected. The Raman analysis contribute to refining the structural features clarifications. It was observed that, for both concentrations, the increase in thickness seems to slightly affect the stoichiometry of material and, in association with surface morphology variations, provide new possibilities for fine tuning of films properties towards enhanced as sensing applications. Further studies are ongoing.

Keywords

Raman spectroscopy; tungsten oxide; spray pyrolysis; thin films

Subject

Chemistry and Materials Science, Materials Science and Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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