Physicochemical study of phase formation in the Sb2S3-Cr2Te3 system
Abstract
Chromium chalcogenides and systems based on them have not been sufficiently studied. Chromium chalcogenide compounds Cr2X3 (X = S, Se, Te), new phases and solid solutions based on them are widely used in semiconductor technology, since these are materials with thermoelectric and magnetic properties. The purpose of this study was the investigation of chemical interactions in the Sb2S3–Cr2Te3 system, the construction of a phase diagram, and the search for new phases and solid solutions.
Using the methods of physicochemical analysis (differential thermal, X-ray phase, microstructural analysis, as well as density and microhardness measurements), the chemical interaction in the Sb2S3-Cr2Te3 system was studied and its phase diagram was constructed. The phase diagram of the system is quasi-binary and is characterized by the formation of a quaternary compound Cr2Sb2S3Te3.
Compound Cr2Sb2S3Te3 incongruently melted at 610 °C. Microstructural analysis showed that at room temperature solid solutions based on Sb2S3 were formed in the system, which reached up to 5 mol. % Cr2Te3, and based on Cr2Te3 up to – 8 mol. % Sb2S3. The Sb2S3–Cr2Te3 eutectic formed in the Sb system contains 20 mol. %Cr2Te3 and has a melting point of 430 °C. The Cr2Sb2S3Te3 compound crystallizes in a tetragonal system with the unit cell parameters: a = 10.03; c =16. 67 Å, z = 7, rpycn. = 5.72 g/cm3, rX-ray = 5.765g/cm3
Downloads
References
Zhou Y., Wang L., Chen S., … Tang J. Thin-film Sb2Se3 photovoltaics with oriented one-dimensional ribbons and benign grain boundaries. Nature Photonics. 2015; 9: 409–415. https://doi.org/10.1038/nphoton.2015.78
Fernandez A., Merino M. Preparation and characterization of Sb2Se3 thin films prepared by electrodeposition for photovoltaic applications. Thin Solid Films. 2000;366: 202–206. https://doi.org/10.1016/s0040-6090(00)00716-1
Chen, C., Bobela D. C., Yang Y., … Tang J. Characterization of basic physical properties of Sb2Se3 and its relevance for photovoltaics. Frontiers of Optoelectronics. 2017;10: 18–30. https://doi.org/10.1007/s12200-017-0702-z
Magomedov A. Z., Aliev A. O., Aslanov M. A., Musaeva S. M., Javadova S. D. Features of the temperature dependence of the spectral distribution of photosensitivity of ferroelectric semiconductors Sb2S3–Sb2Se3. Bulletin of Baku University. Series of physical and mathematical sciences. 2004;4: 163–169. 169 (In Azerbaijanian).
Ju T., Koo B., Jo J. W., Ko M. J. Enhanced photovoltaic performance of solution-processed Sb2Se3 thin film solar cells by optimizing device structure. Current Applied Physics. 2020;20(2): 282–287. https://doi.org/10.1016/j.cap.2019.11.018
Kumar P., Sathiaraj T. S., Thangaraj R. Optical properties of amorphous Sb2Se3:Sn films. Philosophical Magazine Letters. 2010;90(3): 183–192 https://doi.org/10.1080/09500830903520704
Rajpure K. Y., Bhosale C. H. Effect of Se source on properties of spray deposited Sb2Se3 thin films. Materials Chemistry and Physics. 2000;62: 169–174. https://doi.org/10.1016/s0254-0584(99)00173-x
Vieira E. M. F., Figueira J., Pires A. L., … Goncalves L. M. Enhanced thermoelectric properties of Sb2Te3 and Bi2Te3 films for flexible thermal sensors. Journal of Alloys and Compounds. 2019;774(5): 1102–1116. https://doi.org/10.1016/j.jallcom.2018.09.324
Zhang H., Liu C.-X., Qi X.-L., Dai X., Fang Z., Zhang, S.-C. Topological insulators in Bi2Se3, Bi2Te3 and Sb2Te3 with a single Dirac cone on the surface. Nature Physics. 2009;5(6): 438–442. https://doi.org/10.1038/nphys1270
Wang G., Cagin T. Electronic structure of the thermoelectric materials Bi2Te3 and Sb2Te3 from firstprinciples calculations. Physical Review B. 2007;76: 075201-8. https://doi.org/10.1103/physrevb.76.075201
Xu B., Zhang J., Yu G., Ma S., Wang Y., Wang Y. Thermoelectric properties of monolayer Sb2Te3. Journal of Applied Physics. 2018;124(16): 165104. https://doi.org/10.1063/1.5051470
Kulbachinskii V. A., Kytin V. G., Zinoviev D. A., … Banerjee A. Thermoelectric properties of Sb2Te3- based nanocomposites with graphite. Semiconductors. 2019;53: 638–640 https://doi.org/10.1134/s1063782619050129
Liu X., Chen J., Luo M., … Tang J. Thermal evaporation and characterization of Sb2Se3 thin film for substrate Sb2Se3/CdS solar cells. ACS Applied Materials & Interfaces. 2014;6: 10687–10695. https://doi.org/10.1021/am502427s
Kutasov V. A. Shifting the maximum figure-ofmerit of (Bi, Sb)2(Te,Se)3thermoelectrics to lower temperatures. In: Thermoelectrics Handbook. Boca Raton, FL, USA: CRC Press; 2005. 37-18–37-31. https://doi.org/10.1201/9781420038903.ch37
Zargarova M. I., Mamedov A. N., Azhdarova D. S., Akhmedova (Veliev) J. A., Abilov C. I. Inorganic substances synthesized and studied in Azerbaijan. Handbook. Baku: Elm. Publ.; 2004. 462 p.
Yamashita O., Yamauchi H., Yamaguchi Y. et.al. Magnetic properties of the system CuCr2Se4.xYx (Y = C1, Br). Journal of the Physical Society of Japan. 1979;47(2): 450–454. https://doi.org/10.1143/jpsj.47.450
Koroleva L. I., Lukina L. N., Busheva E. V., Shabunina G. G., Aminov T. G. CuCr2Se4-xSbx: a new magnetic semiconductor. Inorganic Materials. 1999;35(12): 1217–1220. Available at: https://elibrary.ru/item.asp?ad=13328594
Aminov T. G., Arbuzova T. I., Busheva E. V., Shabunina G. G. СuСг2-хSSbхSe4 and Cu1-ySbyCr2Se4 solid solution. Inorganic Materials. 2000;36(2): 114–118. https://doi.org/10.1007/BF02758008
Nakatani I., Nose H., Masumoto K. Magnetic properties of CuCr2Se4 single crystals. Journal of Physics and Chemistry of Solids. 1978;39(7): 743–749. https://doi.org/10.1016/0022-3697(78)90008-2
Physico-chemical properties of semiconductor substances*. Handbook. Moscow: Nauka Publ.; 1979. 339 p. (In Russ.)
Phase diagrams of binary metal systems*. Handbook. 3 vol. / N. P. Lyakishev (ed.). Moscow: Mashinostroenie Publ.; 1997. 1023 p. (In Russ.)
Copyright (c) 2024 Condensed Matter and Interphases
This work is licensed under a Creative Commons Attribution 4.0 International License.