Synthesis and characterisation of new potassium-containing argyrodite-type compounds

• Опубліковано в: : Semiconductor Physics Quantum Electronics & Optoelectronics
• Дата: 2019
• Автори: Studenyak, I.P., Pogodin, A.I., Studenyak, V.I., Kokhan, O.P., Azhniuk, Yu.M., Cserhati, C., Kokenyesi, S., Zahn, D. R.T.
• Формат: Стаття
• Мова: Англійська
• Опубліковано: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2019
• Теми: Semiconductor physics
• Онлайн доступ: https://nasplib.isofts.kiev.ua/handle/123456789/215431
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Synthesis and characterisation of new potassium-containing argyrodite-type compounds / I.P. Studenyak, A.I. Pogodin, V.I. Studenyak, O.P. Kokhan, Yu.M. Azhniuk, C. Cserhati, S. Kokenyesi, D. R.T. Zahn // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2019. — Т. 22, № 1. — С. 26-33. — Бібліогр.: 26 назв. — англ.

Potassium halogen thiophosphates K₆PS₅Br and K₆PS₅Cl, as well as halogen-free K₇PS₆ compound, were synthesized using the two-step technique from elemental substances as well as potassium halides. The elemental composition of the obtained samples was determined using energy-dispersive X-ray spectroscopy. Raman spectra of K₆PS₅Br and K₆PS₅Cl show themselves to be very similar to those of chemically related Cu₆PS₅Br and Cu₆PS₅Cl argyrodite crystals. The much richer spectra of K₆PS₅Br and K₆PS₅Cl, as well as K₇PS₆, however, reveal that their structure most likely differs from the cubic structure of Cu₆PS₅Br and Cu₆PS₅Cl argyrodites.