超薄BiOI纳米片在SiO2/Si基底上的CVD合成

In recent years, there are numerous researches foucus on the two-dimensional materials (2D materials). More and more two-dimensional materials have been successfully prepared by the chemical vapor deposition (CVD). By a simple CVD method, we have successfully prepared BiOI nanoplates with different thicknesses on SiO2/Si substrate. BiOI nanosheets grown on SiO2/Si substrate have smooth surface morphology, and the thinest thickness of BiOI nanosheets can reach 1.6nm. Through optical microscopy, Raman, X-ray diffraction, transmission electron microscopy and a series of characterization, it was confirmed that the obtained BiOI nanosheet is a single crystal with high crystalline quality.