LiInS₂ material was synthesized in homemade graphite crucible by horizontal Bridgman furnace with high purity elements. LiInS₂ single crystal was grown by Bridgman gradient furnace with gradient of 10-15°C/cm. The grown crystal was subjected to various characterizations such as powder XRD, single crystal XRD, HRXRD, FTIR, UV-Vis-NIR studies, photoluminescence and Micro Raman spectroscopy. The grown LiInS₂ crystal was confirmed by single crystal and powder X-ray diffraction analyses. The grown crystal perfection was recorded by HRXRD which is 82 arc sec (FWHM). The FTIR transmission of grown LiInS₂ single crystal was measured to be around 80% which is very useful for mid IR laser, Lidar application. The band gap energy 1.99 eV was calculated from absorption spectrum. The photoluminescence spectrum was observed around 460 nm at room temperature, corresponding energy is 2.69eV. The structural and compositional uniformities of LiInS₂ were measured using micro-Raman scattering spectroscopy at room temperature. The insignificant change in the FWHM of the Г₁ (W₁) measured at different regions of the crystal further reveals that the composition throughout its length is fairly uniform.

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