About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
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Nanostructured Materials in Extreme Environments III
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Presentation Title |
Structural, vibrational, and optical properties of nano- Cu2ZnSnS4 under extreme conditions of i) High Pressure and ii) 6 MeV electron irradiation |
Author(s) |
Shailendra Satish Dahiwale |
On-Site Speaker (Planned) |
Shailendra Satish Dahiwale |
Abstract Scope |
In this experimental work, we investigated the phase stability of nano-Cu2ZnSnS4 (CZTS) photo-absorbing material under extreme conditions of high pressure and electron irradiation. The high-pressure Raman study confirms that at around 9 GPa, the compound transformed from the ambient ordered kesterite phase to a disordered kesterite structure and further pressurization the compound transformed to a new phase above 23 GPa (probably rock-salt phase). Both the phase transitions are completely reversible. High pressure synchrotron powder diffraction measurements also confirm the transition from ordered kesterite to disordered kesterite above 9 GPa. Investigation of 6 MeV electron irradiation on nano-CZTS reveals phase transition from ordered kesterite to disordered kesterite for 4 x1015e-/cm2 irradiation fluence. The XRD patterns shows the decrease in crystallite size from 14.4 nm to 12.3 nm with increase in electron irradiation. Also, the samples did not amorphized in the fluence range used and thus indicated radiation stability. |
Proceedings Inclusion? |
Planned: |
Keywords |
Powder Materials, Characterization, Other |