Synthesis Antimonene Through Laser Irradiation In Liquid And Its Nonlinear Optics Performances

Antimonene,as a new two-dimensional material,has received extensive attention from scientific researchers in recent years due to its excellent physical and chemical properties and strong stability in the air environment.The related theoretical results about antimonene provide a better direction for scientific researchers from the experimental preparation of antimonene to the practical application of antimonene.At present,researchers have begun to explore various preparation methods of and its applications in solar cells,photocatalysis,nonlinear optics and other fields.Antimonene was prepared by laser irradiation in liquid for the first time in this paper,and successfully realizes the application of antimonene in the nonlinear field.The specific research contents are as follows:After the laser irradiated bulk antimony powder in different solutions(including ethanol,isopropanol,and deionized water),we analysis the products prepared in different solutions.Through using different characterization methods,it was concluded that the products irradiated in isopropanol and ethanol were antimonene nanosheets,which proved that antimonene was successfully prepared by laser irradiation in liquid.By the comparison of the products respectively in isopropanol and ethanol,it could be concluded that the antimonene nanosheets prepared by laser irradiation in isopropanol have better quality in spect of the morphology,size and thickness of the antimonene nanosheets.The influences of laser irradiation time,laser energy on the antimonene prepared in isopropanol on morphologies were investigated and the mechanism of preparing antimonene by laser irradiation in liquid was explained.The results showed that:(1)When the irradiation time was increased to 50 min,the product transitioned from nanosheets to spheres,the size of antimonene became smaller,antimonene's thicknesses gradually increased,and the surface oxidation of antimonene was gradually serious.(2)With the increase of the laser energy,the size of the few-layer antimonene horizontal size became smaller,the thicknesses of antimonene nanosheets increased,and a large number of clusters appeared.The size and thicknesses of antimonene can be controlled by changing the experimental parameters.The Z-scan test and optical limiting test were carried out on the antimonene dispersion prepared in different condition of laser irradiation parameters.The influence of size and thicknesses of antimonene nanosheets dispersion on its nonlinear absorption effect and optical limiting behavior were explored.The research results showed that the optical limiting ability of antimonene nanosheets were increased with the decrease of the thicknesses;the better the dispersion of antimonene nanosheets,the better the photon absorption effect,and the better the optical limiting ability.The influence of different Z-scan test laser energy on the normalized transmittance curve of antimonene nanosheets was studied.The results showed that antimonene nanosheets exhibited saturable absorption under low test laser energy.With the increase of test energy,the saturable absorption of the antimonene was suppressed and the two-photon absorption response was obvious.The antimonene prepared by laser irradiation in isopropanol was doped with organic silicon materials to form antimonene/silicone hybrid rubber materials with different doping concentration,and optical limiting responses were investigated.When the doping concentration was 0.01%,the antimonene/silicone hybrid rubber material had high transparency,and the optical limiting threshold is 0.22 GW/cm~2,successfully realizing the application of antimonene nanosheets in the field of optical limiting devices.