Lattice dynamics in kesterite-type Cu2ZnSnS4: Inelastic neutron scattering studies and thermoelectric properties
| Autor: | S. L. Chaplot, S.S. Dahiwale, Mala N. Rao, Rekha Rao, Sanjay D. Dhole, S.P. Kandare |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Condensed matter physics Phonon business.industry 02 engineering and technology General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Inelastic neutron scattering 0104 chemical sciences Condensed Matter::Materials Science Thermal conductivity Semiconductor Thermal Thermoelectric effect engineering General Materials Science Crystallite Kesterite 0210 nano-technology business |
| Zdroj: | Journal of Physics and Chemistry of Solids. 150:109819 |
| ISSN: | 0022-3697 |
| DOI: | 10.1016/j.jpcs.2020.109819 |
| Popis: | Cu2ZnSnS4 is a p-type semiconductor that has been seen as a possible replacement for SnSe, Cu (In,Ga)Se2 etc. in thin film solar cells, due to non-toxicity and natural abundance of their constituent elements. Polycrystalline Cu2ZnSnS4 samples (kesterite-type) were synthesized by a microwave assisted method and investigated by inelastic neutron scattering. The experimentally measured neutron-weighted phonon density of states compares reasonably well with that estimated by a computation of the lattice dynamics. These studies are then extended to elucidate the understanding of the thermal, elastic and thermoelectric properties. The lattice-dynamics calculations are able to reproduce the temperature dependence of the thermal conductivity and the thermoelectric figure of merit, as observed in experiments previously. |
| Databáze: | OpenAIRE |
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