In this work, SnS1−xSex ternary nanobelts were synthesized by a facile hydrothermal method without the assistance of surfactants. The structure, morphology, microstructure, compositions, chemical valences, phonon modes, and optical band gaps of the SnS1−xSex nanobelts were characterized in detail. The results indicate that the SnS1−xSex nanobelts have uniform one-dimensional morphology and are single crystals with high crystallinity. Se is incorporated into the SnS lattice to substitute for S-forming ternary SnS1−xSex alloy. With the increase of Se doping concentration, the optical band gaps of the nanobelts gradually decrease from 1.15 to 1.01 eV, confirming the tunable optical property achieved here.

中文翻译：

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单晶 SnS1-xSex 纳米带的合成和光学性质

在这项工作中，SnS1−X硒X三元纳米带通过简便的水热法合成，无需表面活性剂的辅助。SnS 的结构、形态、微观结构、成分、化学价、声子模式和光学带隙1−X硒X纳米带进行了详细的表征。结果表明，SnS1−X硒X纳米带具有均匀的一维形貌，是具有高结晶度的单晶。Se 被掺入到 SnS 晶格中以替代形成 S 的三元 SnS1−X硒X合金。随着 Se 掺杂浓度的增加，纳米带的光学带隙从 1.15 eV 逐渐减小到 1.01 eV，证实了此处实现的可调谐光学特性。