Effect of Sb doping on the structural, microstructural, and magnetic properties of TiO2 thin films for sensor applications using evaporation technique

Hafs T., Hafs A., Berdjane D., Ayaz R., Bendjama A., Hasnaoui N.

Journal of Materials Science: Materials in Electronics, cilt.35, sa.35, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 35 Sayı: 35
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1007/s10854-024-14036-8
  • Dergi Adı: Journal of Materials Science: Materials in Electronics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, MEDLINE, Metadex, Civil Engineering Abstracts
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Undoped and Sb-doped TiO2 thin films were synthesized via thermal evaporation and deposited on glass substrates, with Sb concentrations of 2, 4, and 6 wt.% in the MECA2000 evaporator. The structural, microstructural and magnetic properties of films with varying antimony doping concentrations (0, 2, 4, and 6 wt.%) were analyzed using X-ray diffraction with the MAUD program based on the Rietveld method and vibrating sample magnetometry (VSM). X-ray diffraction (XRD) shows that the undoped product corresponds to the anatase phase of TiO2 and remains free from contamination even after adding 2% by weight of the impurity Sb. However, at higher Sb concentrations of 4 and 6% by weight, a phase transition occurs from anatase to rutile. The vibrating sample magnetometer results indicate that the undoped TiO2 thin film displays ferromagnetic behavior at room temperature, with a saturated magnetic moment (Ms) of 0.71 × 10–3 emu. Antimony doping at 2, 4, and 6 wt% enhances Ms to 1.24 × 10–3, 1.47 × 10–3, and 1.68 × 10–3 emu, respectively.