Abstract:
The polycrystalline samples of Cu2 – δSrSnS4 with a trigonal structure were prepared by solid-phase ampoule synthesis with a long annealing time (1944 h), and their crystal lattice parameters were refined and Raman spectra were obtained. For the first time, the effect of defect structure on the lifetimes of photogenerated current carriers in the polycrystalline powders was examined by combining time-resolved microwave photoconductivity and cathodoluminescence methods. A significant increase in the lifetimes during the conversion of Cu2SrSnS4 into Cu1.9SrSnS4 was found, which was probably due to changes in the defect structure.
Keywords:
copper quaternary compounds, Cu2 –δSrSnS4, polycrystalline powders, defect structure, cathodoluminescence, lifetimes of photogenerated current carriers.
Citation:
M. V. Gapanovich, E. V. Rabenok, F. K. Chikin, B. I. Golovanov, I. N. Odin, V. V. Rakitin, D. M. Sedlovets, D. V. Korchagin, G. V. Shilov, “Synthesis and crystal and defect structures of polycrystalline Cu2SrSnS4 and Cu1.9SrSnS4 powders”, Mendeleev Commun., 33:2 (2023), 264–266
Linking options:
https://www.mathnet.ru/eng/mendc370
https://www.mathnet.ru/eng/mendc/v33/i2/p264
This publication is cited in the following 2 articles:
G. Hao, J. Y. Shen, Y. L. Sun, K. Xu, Y. F. Wang, “Photocatalytic and thermoelectric properties of Cu2SrSnS4 nanoparticles by solvothermal method”, CL, 21:10 (2024), 765
Mikhail V. Gapanovich, Evgenia V. Rabenok, Vladimir V. Rakitin, Elizar N. Koltsov, Svetlana G. Protasova, Daria M. Sedlovets, Gennadii V. Shilov, Aliona V. Stanchik, Valery F. Gremenok, M.I. Sayyed, Daria I. Tishkevich, Alex V. Trukhanov, “Study of the stoichiometry effect on the structure and loss kinetics of photogenerated current carriers in Cu2-δBaSnS4 (0≤δ≤0.4) quaternary copper compounds”, Journal of Solid State Chemistry, 339 (2024), 124930
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