【摘 要】
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As an important member of the two-dimensional layers of metal dichalcogenides family,the two-dimensional (2D)group IV metal chalcogenides (GIVMCs) have been att
【机 构】
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Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelec
论文部分内容阅读
As an important member of the two-dimensional layers of metal dichalcogenides family,the two-dimensional (2D)group IV metal chalcogenides (GIVMCs) have been attracting intensive attention.However,the growth of monolayer tin disulfide (SnS2) remains a great challenge contrasted to transition metal dichalcogenides,which have been studied quite maturely.Till date,there have been scant reports on the growth of large-scale and large-size monolayer SnS2.Here,we successfully synthesized monolayer SnS2 crystal on SiO2/Si substrates via NaCl-assisted CVD and the edge can be as long as 80 μm.Optical microscope,Raman spectroscopy,x-ray diffraction,atomic force microscopy (AFM),and energydispersion x-ray (EDX) were performed respectively to investigate the morphology,crystallographic structure,and optical property of the 2D SnS2 nanosheets.In addition,we discussed the growing mechanism of the NaCl-assisted CVD method.
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