Ludmila Isaenko, Alexander Yelisseyev, Sergei Lobanov, Alexander Panich, Vitaly Vedenyapin, Julia Smirnova, Valentin Petrov, Jean-Jacques Zondy, Guido Knippels
ABSTRACT X-ray structural analysis, nuclear magnetic resonance, optical spectroscopy and second harmonic generation were used to characterize the new nonlinear crystals LilnS 2 and LiInSe 2 which possess maximum band gap (3.59 and 2.86 eV at 300 K, respectively) among ternary chalcogenides. As grown crystals are only slightly colored while color change after annealing is due to native point defects.
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