【摘要】 选用Pb（Ac）₂为铅源,分别以Na₂S₂O₃和硫代乙酰胺为硫源,分别以PVA、十二烷基苯磺酸钠、乙二胺为表面活性剂,在一定剂量电子束辐射下,元素Pb和S发生反应,合成均匀分散的PbS纳米晶体颗粒。用X射线粉末衍射,原子力显微镜,紫外光谱和荧光光谱对产物的组成、大小、形貌以及发光效应进行表征。结果表明,产物纳米PbS为立方晶系结构,平均粒径为30nm.更多还原

【Abstract】 Pbs nano crystal was synthesized by element Pb from Pb（Ac）₂ and S from Na₂S₂O₂ and C₂H₅NS under definite quantity electron beam condition by using PVA,sodium dodecyl benzene sulfonate and ethylenedia- mine as surfactant.The composition,volume,shape and luminescent effect were determined by X-ray powder diffraction,atomic force microscope,ultraviolet spectrum and fluorescence spectrum.The results showed that nano PbS is crystal system cubic structure,average particle size is 30nm.更多还原