Synsthesis, Control And Characterization Of The Sb₂E₃（E=S,Se） Micro-and Nanomaterials

Owing to their unique optical, electronic and magnetic properties, semiconductor nanomaterials has greatly aroused researchers’interest. In this thesis, we have synthesized two typical semiconductor antimony trisulfide(Sb2S3) and antimony triselenide (Sb2Se3) nanomaterials with different morphologies via hydrothermal reaction. The structures and morphologies of products were characterized by XRD, TEM and SEM, etc. There are four parts in this thesis:(1)Sb2S3micro-and nanosheet array have been prepared by using antimony potassium and Mercaptosuccinic acid(MSA) as raw materials, water as solvent, sodium citrate and ethylenediamine(EDA) as ligand and tungsten foil as substrate via hydrothermal method. Moreover, we studied the influences of the reactants’mole ratio and reaction time on the morphologies of productsand propose the growth mechanism of Sb2S3micro-and nanosheet array.(2) Ultralong Sb2Se3nanowire have been obtained by using antimony potassium and selenourea as reactants and water as solvent. The morphologies of Sb2Se3nanowire can be easily controlled by adjusting the dose of hydrazine hydrate and SDS. The growth mechanism of Sb2Se3is proposed according to the characteristic of the Sb2Se3crystal structures and the effect of the ligands.(3) High quality Sb2Se3nanorod array on the tungsten foil have been synthesized by using antimony potassium and selenourea as reactants, ethylene glycol as solvent and citric acid as ligand.(4) Sb2S3micro-and nanosheet array doped with different ions have been prepared by adding Ag+, Cu2+, Zn2+, Cd2+and Ni2+into the solution. The conductivity of Sb2S3micro-and nanosheet array doped different ions was studied.