Ferromagnetic and photoluminescence properties of transparent conductive Cd1-xSnxO thin films for light emitting diode applications

• Published in: Applied physics. A, Materials science & processing Materials science & processing, 2024-12, Vol.130 (12), Article 888
• Main Authors: Arcot, Jaswanth, Shaik, Kaleemulla
• Format: Article
• Language: English
• Subjects: Aspect ratio; Characterization and Evaluation of Materials; Condensed Matter Physics; Electrical properties; Electron beams; Elongated structure; Emission spectra; Ferromagnetic materials; Functional groups; Infrared analysis; Light emitting diodes; Machines; Magnetic properties; Manufacturing; Nanotechnology; Optical and Electronic Materials; Optical properties; Photoluminescence; Physics; Physics and Astronomy; Processes; Surfaces and Interfaces; Thin Films; Tin
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-024-08065-7

Tin doped cadmium oxide (Cd 1-x Sn x O) thin films at different tin (Sn) concentrations (x = 0, 0.03, 0.05, 0.07) were prepared using electron beam evaporation technique and subjected to various characterisations. From XRD, prepared thin films shows polycrystalline nature with cubic structure. FE-SEM nano-graphs confirmed the elongated oval shape morphology with 1:3 aspect ratios. FT-IR analysis revealed the presence of functional groups and chemical interactions. Raman spectrum was recorded in the range of 200 cm −1 to 1000 cm −1 . Using Tauc’s relation optical bandgap is calculated and it is found to be increased 2.00 eV – 2.40 eV. Photoluminescence spectra were recorded Cd 1-x Sn x O thin films and emission peaks were found in visible region. CIE diagrams confirm the thin films in blue- green portion. Using a source meter, the electrical properties were examined and it was observed that the electrical resistivity decreased. Magnetic properties reveals that the Sn-doped CdO thin films exhibit ferromagnetic nature.