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From KBa4Ge3S10Cl to ABa3EuGe3S11 (A = Na; K) Synthesized by Reactive Flux Assisted Metal Oxide-Boron-Chalcogen (MOBQ) Method: Effect of Cation/Anion Cosubstitution on Crystal Structure and Nonlinear Optical Properties
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DOI：10.1021/acs.inorgchem.6c02058.png)
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Abstract
En 中文
Chalcogenides are promising candidates to solve the scarcity of currently applicable middle nonlinear optical (NLO) crystals. Herein, heterovalent cosubstitution strategy was applied to [KBa4Cl][Ge3S10] (0), which resulted in the discovery of new ABa3EuGe3S11 (A = Na (1), K (2)). Both of them were synthesized via the reactive flux assisted metal oxide-boron-chalcogen (RFMOBQ) routine, and crystallize in the chiral P63 space group. Their quasi-3D structures are constructed by EuS7 monocapped trigonal prisms and Ge3S9 rings when considering the covalence of Eu–S bonds, which are different from the isolated Ge3S9 cluster in 0. 1 and 2 show strong NLO responses (0.7 and 0.6 × AgGaS2@2.1 μm) and enhanced laser-induced damage thresholds (4.01 and 4.85 × AgGaS2@1064 nm). This work provides a referential case for increasing the structural dimension, which can be applied to the exploration of new NLO crystals.
Keywords:
Chalcogenides
Crystal structure
Infrared light
Nonlinear optics
Optical materials
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4.7
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4.9W
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10.5W
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Cited Papers