水溶性ZnS:Mn^(2+)量子点的合成及荧光性能研究  

Synthesis of water-soluble ZnS:Mn^(2+) quantum dots and photoluminescence thereof

作　　者：刘英博[1] 李振[1] 张元[1] 周迪[1] 郑重[2] 张德文[1] 

机构地区：[1]长春工业大学化学与生命科学学院,吉林长春130012 [2]长春生物制品研究所

出　　处：《无机盐工业》2012年第6期27-30,共4页Inorganic Chemicals Industry

摘　　要：采用气液两相法合成了在573 nm处发射荧光的水溶性ZnS:Mn2+量子点。研究了Mn2+掺杂量(物质的量分数,下同)对ZnS:Mn2+量子点荧光强度的影响,结果表明:随着Mn2+掺杂量的增加ZnS:Mn2+量子点荧光强度随之增加;当Mn2+掺杂量达到1%时ZnS:Mn2+量子点荧光发射强度达到最大;继续增加Mn2+掺杂量ZnS:Mn2+量子点荧光强度减弱。利用透射电镜(TEM)、X射线粉末衍射(XRD)、红外光谱(IR)、紫外-可见光谱(UV-Vis)和荧光发射光谱对ZnS:Mn2+进行了表征,结果表明ZnS:Mn2+量子点具有较强的黄色荧光。Water-soluble ZnS：Mn2＋ quantum dots （QDs） emitting at 573 nm were synthesized with gas-liquid phase method. Effect of Mn2＋ concentration on fluorescence intensity of ZnS ：Mn2＋ QDs has been studied.It was found that fluorescence intensity gradually increased with the increase of Mn2＋ concentration.When Mn2＋ doping concentration was at 1% ,the maximum emission intensity was achieved.If the Mn2＋ concentration continued to be increased,the fluorescence would decrease.ZnS：Mn2＋ QDs was characterized by transmission electron microscopy （TEM）, X-ray diffraction （XRD）, Infrared Spectroscopy （IR）, UV-Vis absorption spectroscopy （UV -Vis）, and photoluminescence （PL） emission spectroscopy.Results demonstrated that ZnS ： Mn2＋ showed strong yellow fluorescence.

关 键 词：ZnS:Mn2+量子点 Mn2+浓度 荧光 

分 类 号：TQ132.41[化学工程—无机化工]