Effect of Gd3+ Ions on the Thermal Behavior, Optical, Electrical and Magnetic Properties of PbS Thin Films
| Autor: | S. Ravishankar, A. R. Balu, V. S. Nagarethinam |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Doping Analytical chemistry 02 engineering and technology Cubic crystal system 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Crystallography Impurity Transmission electron microscopy 0103 physical sciences X-ray crystallography Materials Chemistry Thermal stability Electrical and Electronic Engineering Thin film 0210 nano-technology Thermal analysis |
| Zdroj: | Journal of Electronic Materials. 47:1271-1278 |
| ISSN: | 1543-186X 0361-5235 |
| DOI: | 10.1007/s11664-017-5910-1 |
| Popis: | This paper reports the effect of Gd doping concentration on the thermal behavior, structural, morphological, optical, electrical and magnetic properties of PbS thin films. Gd doping concentration in PbS was varied as 0 wt.%, 1 wt.%, 2 wt.%, 3 wt.% and 4 wt.%, respectively. Thermogravimetric–Differential Thermal Analysis curves confirm that both the undoped and doped films become well crystallized above 354°C and 342°C, respectively. X-ray diffraction studies confirm that all the films exhibit face-centered cubic crystal structure with a strong (2 0 0) preferential growth. Undoped films exhibit triangular-shaped grains which modify to small cuboids with Gd doping. Energy dispersive x-ray spectra confirm the presence of Gd in the doped films. Transmission electron microscopy images confirm the presence of nanosized grains for both the undoped and doped films. The doped films showed increased transparency and improved magnetic behaviour. The results obtained confirm that Gd3+, a rare earth ion, strongly influences the physical properties of PbS thin films to a large extent. |
| Databáze: | OpenAIRE |
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