Bi<sub>2</sub>WO<sub>6</sub> thin films grown by high-power InfraRed Nd:YAG pulsed laser deposition: a structural and spectroscopic study
Abstract We report on the epitaxial growth of Bi 2 WO 6 thin films by Pulsed Laser Deposition using a high-power infrared Nd:YAG laser source. X-ray diffraction investigation confirms that single (00 l )-oriented thin films can be obtained on both LSAT and SrTiO 3 substrates by using a LaNiO 3 adapting layer. Moreover, reciprocal space maps show that the films coherently grow on such substrates with the in-plane lattice parameters fully matching those of the substrates. In-situ x-ray photoemission spectroscopy experiments show that a UHV annealing process makes the film more conductive even though it also affects the Bi:W chemical ratio by reducing the Bi content. Alternately, the conductivity of the films can be effectively tuned by either growing the film in Ar atmosphere or by depositing potassium on its surface without modifying the Bi:W chemical ratio. Our results provide a viable route to synthesize high-quality Bi 2 WO 6 thin films with tailored electronic properties.
Authors
- Carolina Gutiérrez Bolaños (ORCID: https://orcid.org/0000-0001-7682-8099)
- Maria Eugênia Fortes Brollo (ORCID: https://orcid.org/0000-0002-6285-2204)
- Shyni Punathum Chalil
- Jun Fujii (ORCID: https://orcid.org/0000-0003-3208-802X)
- Sandeep Kumar Chaluvadi (ORCID: https://orcid.org/0000-0002-3689-3336)
- A. Goldoni (ORCID: https://orcid.org/0000-0001-9989-3889)
- Federico Mazzola (ORCID: https://orcid.org/0000-0002-5380-4374)
- Regina Ciancio (ORCID: https://orcid.org/0000-0003-1739-3763)
- I. Vobornik (ORCID: https://orcid.org/0000-0001-9957-3535)
- P. Orgiani (ORCID: https://orcid.org/0000-0002-1082-9651)
- Marco Caputo (ORCID: https://orcid.org/0000-0001-7452-0998)
- Lorenzo Arici
Institutions
- The Abdus Salam International Centre for Theoretical Physics (ICTP) (IT)
- University of Trieste (IT)
- AREA Science Park (IT)
- Elettra-Sincrotrone Trieste S.C.p.A. (IT)
- Superconducting and other Innovative Materials and Devices Institute (IT)
- Istituto Officina dei Materiali (IT)
- MAX IV Laboratory (SE)
- Weizmann Institute of Science (IL)
Publication Details
- Journal
- Journal of Physics Materials
- Published
- 2025-02-12
- DOI
- https://doi.org/10.1088/2515-7639/adb51b
- Primary Topic
- Gas Sensing Nanomaterials and Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.00