烷烃溶剂热法合成单分散硒化锌准纳米球

Synthesis of Monodispersed ZnSe Quasi-nanospheres by Hydrocarbon Solvothermal Method

硒化锌作为一种半导体材料,具有宽的带隙（2.58 eV）、宽的透射范围（0.5～22μm）、高的发光效率、对红外光的低的吸收系数和优良的透过性,因此成为研制蓝色发光二极管、蓝色激光器、多色荧光粉、红外透镜、非硅晶类太阳能电池等光电材料的首选材料。元素直接反应法、溶胶凝胶法、反胶束法、微乳液法、溶剂热法、微波辅助法、超声辅助法、模版法、放射辅助法、共沉淀法、有机金属前驱体热解法、化学气相沉积法、溶剂热法、

Monodispersed ZnSe quasi-nanospheres have been prepared by a hydrocarbon solvothermal route at 180℃ using decahydronaphthalene,zinc stearate and selenium as starting materials.The as-obtained products were characterized by SEM,TEM,XRD,elemental analysis and electron-diffraction techniques.Electron microscopy reveals that ZnSe particles prepared in decahydronaphthalene are monodispersed with an average particle size of 55 nm.The possible formation mechanism was investigated by changing hydrocarbon solvent.The shape and size of ZnSe particles depend on the structure of hydrocarbon solvent.