中文摘要：

以硝酸锌、硝酸铜和二乙基二硫代氨基甲酸钠为原料,制得含硫金属有机配合物。将含硫金属有机配合物在200℃进行热解,制备了亮紫色发光的ZnS∶Cu纳米荧光粉。XRD检测结果显示,荧光粉样品为六方晶系的高温相α-ZnS。根据TEM结果,样品为均匀的球形粒子,其粒子尺寸在30nm左右。室温下,样品的激发光谱峰值位于235nm处,相对于α-ZnS体材料的特征吸收峰330nm（3.77eV）发生了蓝移,其原因是量子限域效应使α-ZnS∶Cu纳米粒子的光学带隙增宽。在235nm激发下,样品分别在285、396、486和545nm处各有一个发射带,其中396nm处的发射带发光最强。4个发射带均随铜离子浓度的增加呈现先增强后减弱的变化,铜离子浓度为1.0%时发光最强。

英文摘要：

Sulfur metal-organic complexs were synthesized with Zn（NO3）2,Cu（NO3）2 and DDC（diethyldithiocarbamate） as raw materials.Bright purple emission ZnS∶Cu nano phosphors were synthesized through pyrolysis sulfur metal-organic complex at 200℃.The XRD result shows that high temperature phase α-ZnS with hexagonal structure is obtained.According to TEM micrograph,the phosphors are well-dispersed spherical particles with a mean diameter of about 30nm.The excitation spectra of phosphors with the peak value at 235nm show obvious blue-shift as compared with that of bulk α-ZnS∶Cu（at 330nm）,which arises from quantum confinement effect that makes the optical band gap of α-ZnS∶Cu nanoparticles broadening.Under the excitation of 235nm,the emission bands around 285,396,486 and 545nm are detected,and the emission band around 396nm is the strongest.With the increase of copper ion concentration,the luminous intensities of all emission bands increased firstly and then decreased.The intensity achieves the maximum as the content of copper ion is 1.0%.