Order-disorder transition in Nano-Cu2ZnSnS4: A Raman spectroscopic study
| Autor: | Rekha Rao, Mala N. Rao, S.P. Kandare, S.S. Dahiwale, Sanjay D. Dhole |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Neutron diffraction Analytical chemistry 02 engineering and technology Quaternary compound engineering.material 01 natural sciences symbols.namesake chemistry.chemical_compound Phase (matter) 0103 physical sciences Nano General Materials Science Kesterite CZTS 010302 applied physics Mechanical Engineering technology industry and agriculture 021001 nanoscience & nanotechnology Condensed Matter Physics chemistry Mechanics of Materials engineering symbols sense organs 0210 nano-technology Raman spectroscopy Material properties |
| Zdroj: | Materials Science in Semiconductor Processing. 102:104594 |
| ISSN: | 1369-8001 |
| DOI: | 10.1016/j.mssp.2019.104594 |
| Popis: | Quaternary compound Cu2ZnSnS4 (CZTS) is a highly promising photo absorbing material, due to its suitability in terms of material properties, relative abundance and non-toxicity of its constituents. We report Raman spectroscopic investigation of temperature induced changes in nano-crystalline kesterite structured CZTS synthesized by microwave method. High-temperature Raman spectroscopic studies of nano-crystalline CZTS revealed relative intensity changes in the Raman spectra around the temperatures at which transition from ambient kesterite phase to disordered kesterite phase is reported by earlier neutron diffraction studies in bulk CZTS. This was also confirmed by a laser heating experiment with estimation of temperatures carried out using the Stokes/Anti-Stokes intensity ratio. The changes observed are reversible. The present results indicate a reversible transition to disordered kesterite phase at 550 K which is also achieved by laser heating. |
| Databáze: | OpenAIRE |
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