Origin of the solid solution in the LiInSe 2 –In 2 Se 3 system

Scintillation properties of semiconducting 6LiInSe2 crystals to ionizing radiation

“…Previous work related to the radiation detection properties of 6 LiInSe 2 through direct charge collection also discussed crystals of distinct colors; they indicated that only the yellow crystals respond to ionizing radiation through direct charge transport acceptably well, due to a relatively higher density of deep charge carrier trapping sites in the red colored crystals. The production of these trapping sites could be a joint contribution between generated impurity complexes and constituents loss during both synthesis and growth [18,30].…”

Non-stoichiometry and point native defects in non-oxide non-linear optical large single crystals: advantages and problems

“…In practice, DD analysis has already been used to identify impurity phases and their spatial distribution in crystals. 58,59,65 Correlation between the actual composition of the crystals and color and the optical transparency is well seen in Fig. 10 and 11.…”

“…This was a high-speed thermal analysis operated at high and low buffer-gas pressure (HSTA) 56,57 and a standard-free stoichiographic method, differential dissolution (DD), operated as a chemical method of the phase analysis realizing functions of both bulk and local analysis simultaneously and well controlling both non-stoichiometry and phase purity. 58,59…”

“…The availability of both proper qualitative crystals in reasonable amounts and these powerful HSTA and DD techniques favored obtaining new and undistorted key physicochemical characteristics of LMC 2 crystals according to ref. 56–60. They are given in Table 2.…”

“…With such a strategy, new results were also obtained for the Li 2 Se–In 2 Se 3 system: the substitution solid solution with structural formula (Li 3 x −1 In x □ 2 )InSe 2 and with vacancies in the indium sub-lattice is formed in the range up to 55 mol% In 2 Se 3 (instead of 52 mol% before), 58 and a liquid immiscible region occurred in the Li 2 Se-rich side. 60 For LGT crystals, incongruent evaporation of the melt induced several chemical dissociative transitions which were detected by DD analysis, 61 and the most stable liquid species and their stability ranges in temperature/vapor coordinates are shown in Fig.…”