核壳结构ZnS：Mn／ZnS量子点转光剂的制备及其性能研究  

Study on Preparation and Properties of Core-shell ZnS∶Mn/ZnS Quantum Dots Light Conversion Agent

作　　者：王眉花[1] 牛卫芬[1] 周叶红[1] 董川[1] 

机构地区：[1]山西大学环境科学研究所、化学化工学院,山西太原030006

出　　处：《分析科学学报》2014年第1期1-4,共4页Journal of Analytical Science

基　　金：国家自然科学基金(No.21175086)

摘　　要：本文以巯基丙酸为稳定剂,采用共沉淀法合成ZnS∶Mn量子点,然后使用核外延法制备了具有将紫外光转红光性能的核壳结构ZnS∶Mn/ZnS量子点转光剂,并使用红外(IR)光谱,透射电镜(TEM)对其官能团结构和形貌进行了表征,采用紫外-可见吸收光谱和荧光光谱对其光学性能进行了研究。另外,考察了Mn的掺杂量,放置时间和不同pH的缓冲溶液对ZnS∶Mn/ZnS量子点荧光的影响。The Mn-doped ZnS core was prepared through a coprecipitation method and a ZnS shell was grown on ZnS： Mn core through a epitaxial method. It was found that the ZnS： Mn/ZnS light conversion agent can turn the purple light to the red-orange light. The nanoparticles were structurally and compositionally characterized by infrared spectroscopy and transmission electron microscopy （TEM）. Their optical properties were investigated by UV-Vis absorption spectroscopy and fluorescence emission spectroscopy. In this paper, we also discussed the factors affecting the fluorescence intensity of the nanoparticles,including Mn doping amount, storage time and pH.

关 键 词：ZNS MN ZNS 量子点 转光剂 

分 类 号：O657.3[理学—分析化学]