Origin of the Solid Solution in the LiInSe2–In2Se3 System | Sciact - CRIS-система Института катализа

Origin of the Solid Solution in the LiInSe2–In2Se3 System Научная публикация

Журнал

Journal of Solid State Chemistry
ISSN: 0022-4596 , E-ISSN: 1095-726X

Вых. Данные

Год: 2014, Том: 220, Страницы: 91-96 Страниц : 6 DOI: 10.1016/j.jssc.2014.08.013

Ключевые слова

Concentration micro-heterogeneity

Авторы

Vasilyeva I.G. ¹ , Pochtar A.A. ² , Isaenko L.I. ³

Организации

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
2	Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia
3	Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia

Информация о финансировании (1)

Российский фонд фундаментальных исследований

11-02-00817

Techniques of bulk and local analyses were used to characterize the melt-grown single crystals of LiInSe2, where yellow matrix coexists together with extended red areas distributed irregularly. Bulk chemical analysis showed that the average stoichiometry of yellow matrix is close to ideal 1:1:2, but red areas are enriched with In2Se3. An excess In2Se3 is incorporated coherently into the crystal lattice of LiInSe2, forming the substitution solid solution with the general formula (Li1−3xInx⎕2)InSe2 and changing the color from yellow to red. The test crystals with the 50–55% content of In2Se3 were found by the X-ray analysis to be single phase. The differential dissolution technique, measuring the spatial variation of the composition with high resolution, demonstrated that the single phase crystals in the LiInSe2–In2Se3 system might be grown only in a very narrow range close to stoichiometric. Being supersaturated, the heterovalent solid solution phases decompose in the course of cooling, and the concentration micro-heterogeneity occurs in the matrix as the coherent (or incoherent) inclusions of two different types, practically pure selenides of lithium and indium. The origin and scale of the micro-heterogeneity determining the physical properties of LiInSe2 are discussed as a starting point for the development of physicochemical foundations for growing high quality optical crystals.

Vasilyeva I.G. , Pochtar A.A. , Isaenko L.I.
Origin of the Solid Solution in the LiInSe2–In2Se3 System
Journal of Solid State Chemistry. 2014. V.220. P.91-96. DOI: 10.1016/j.jssc.2014.08.013 WOS Scopus Scopus РИНЦ РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	11 июн. 2014 г.
Принята к публикации:	12 авг. 2014 г.
Опубликована online:	21 авг. 2014 г.
Опубликована в печати:	1 дек. 2014 г.

Web of science:	WOS:000343346100013
Scopus:	2-s2.0-84907204575 \| 2-s2.0-84908045915
РИНЦ:	23988947 \| 41756440
Chemical Abstracts:	2014:1440747
Chemical Abstracts (print):	161:477997
OpenAlex:	W2025041486

БД	Цитирований
Web of science	9
РИНЦ	3 10
Scopus	11
OpenAlex	9