Структурне та спектроскопічне дослідження нелегованих і легованих сріблом полікристалів Sb2S3

• Datum: 2026
• Hauptverfasser: Azhniuk, Y.M., Pogodin, A.I., Filep, M.J., Lopushansky, V.V., Kryshenik, V.M., Izai, V.Y., Satrapinskyy, L., Voynarovych, I.M., Gomonnai, A.V.
• Format: Artikel
• Sprache: Englisch; Ukrainisch
• Veröffentlicht: Publishing house "Academperiodika" 2026
• Schlagworte: фазозмiннi матерiали; дифракцiя рентгенiвських променiв; енергодисперсiйна рентгенофлуоресцентна спектроскопiя; раманiвська спектроскопiя; окиснення
• Online Zugang: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2023822
• Назва журналу: Ukrainian Journal of Physics

Ag-doped Sb2S3 polycrystals with silver content up to 10 at.% were obtained by high-temperature synthesis. Chemical composition of the samples determined by EDX spectroscopy corresponds to the element content in the initial mixture with a rather uniform element distribution over the sample surface with slight inhomogeneities of Ag distribution. XRD data confirmed the orthorhombic (stibnite) structure of the synthesized polycrystalline Sb2S3 : Ag ingots, for the Ag-containing samples AgSbS2 (β-miargyrite) phase was also revealed. Possible presence of the AgSbS2 phase can also be assumed from Raman measurements performed at low laser power density (Pexc = 4 kW/cm2). Raman spectra at increased Pexc (40 kW/cm2) reveal photostructural and photochemical transformations, namely the formation of Sb2O3 and elemental Sb phases due to heating of the sample surface by the tightly focused laser beam.