ZnS:Mn纳米晶的制备及其发光性能研究

Preparation and Luminescence Properties of ZnS:Mn Nanocrystalline

以C19H42BrN为表面活性剂,采用水热法合成了ZnS:Mn纳米晶,分别利用XRD、TEM、荧光光谱仪对其物相、形貌及光学性能进行了研究。结果表明:ZnS:Mn纳米晶为闪锌矿ZnS结构,颗粒近似球形,平均粒径为4～8 nm。荧光光谱显示,ZnS:Mn纳米晶的荧光发射峰强度随着Mn2+掺杂浓度和表面活性剂含量的增加而逐渐增强。

Using C19H42BrN as surfactant,ZnS∶Mn nanocrystallines were synthesized by hydrothermal method.The phase,size and luminescent properties of the nanocrystals were characterized by X-ray diffraction(XRD),transmission electron microscopy(TEM) and fluorescence photometer.The results show that ZnS∶Mn nanocrystals are 4~8 nm of particle size and have a cubic zinc blend crystal structure.The fluorescence spectra showed that the emission peak increased with the increment of Mn-doped concentration and the increment of surfactant.