biostudies-literatureUnknown13(1)Kavitha VSThe article reports the successful fabrication of Eu³⁺-doped WO₃ thin films via the radio-frequency magnetron sputtering (RFMS) technique. To our knowledge, this is the first study showing the tunable visible emission (blue to bluish red) from a WO₃:Eu³⁺ thin film system using RFMS. X-ray diffractograms revealed that the crystalline nature of these thin films increased upto 3 wt% of the Eu³⁺ concentration. The diffraction peaks in the crystalline films are matched well with the monoclinic crystalline phase of WO₃, but for all the films', micro-Raman spectra detected bands related to WO₃ monoclinic phase. Vibrational and surface studies reveal the amorphous/semi-crystalline behavior of the 10 wt% Eu³⁺-doNanomaterials (Basel, Switzerland)7https://www.ebi.ac.uk/biostudies/studies/S-EPMC9824464biostudies-literatureTailoring the Emission Behavior of WO₃ Thin Films by Eu³⁺ Ions for Light-Emitting Applications.PMC9824464Biju VGopchandran KGPraveena RPillai VPMJayasankar CKKavitha VSMekprasart WPecharapa WBoonyarattanakalin KfalseTailoring the Emission Behavior of WO₃ Thin Films by Eu³⁺ Ions for Light-Emitting Applications.The article reports the successful fabrication of Eu³⁺-doped WO₃ thin films via the radio-frequency magnetron sputtering (RFMS) technique. To our knowledge, this is the first study showing the tunable visible emission (blue to bluish red) from a WO₃:Eu³⁺ thin film system using RFMS. X-ray diffractograms revealed that the crystalline nature of these thin films increased upto 3 wt% of the Eu³⁺ concentration. The diffraction peaks in the crystalline films are matched well with the monoclinic crystalline phase of WO₃, but for all the films', micro-Raman spectra detected bands related to WO₃ monoclinic phase. Vibrational and surface studies reveal the amorphous/semi-crystalline behavior of the 10 wt% Eu³⁺-do2022-01-01T00:00:00Z2022 Dec2025-04-21T16:19:09.085Z2025-04-21T16:19:09.085ZS-EPMC98244643661591710.3390/nano13010007