Effect of Heat Treatment on Structural and Optical Properties of Zn1-xCoxS Nanoparticles
| Autor: | Sudesh Sharma, Prasanta Mandal, Sanjay Kumar |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Diffraction Materials science Spectrometer Band gap Doping Analytical chemistry chemistry.chemical_element Nanoparticle 02 engineering and technology Zinc engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Sphalerite chemistry 0103 physical sciences engineering Heat treated 0210 nano-technology |
| Zdroj: | Materials Today: Proceedings. 17:380-385 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2019.07.584 |
| Popis: | Structural and Optical properties of wide bandgap undoped and 5 atomic % Co doped ZnS nanoparticles are reported here. These nanoparticles are prepared by solvothermal method. X-ray diffraction and UV-Vis spectrometer are used to study the structural and optical properties. Heat treatment is given to as-prepared nanoparticles to observe the effect of heat treatment on their structural and optical properties. X-ray diffractograms reveal predominant cubic sphalerite zinc blende structure of as-prepared doped and undoped ZnS nanoparticles. Heat treatment at higher temperature shows the formation of ZnO, both in doped and undoped ZnS nanoparticles. A slight red-shift in the band gap energy is also observed both in the heat treated undoped and 5 at.% Co doped nanoparticles. |
| Databáze: | OpenAIRE |
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