L-半胱氨酸修饰的水溶性ZnS:Mn量子点的合成及其荧光性质  

Synthesis and Fluorescence Property of L-Cysteine-Modified Water-Soluble ZnS:Mn Quantum Dots

作　　者：孙聪[1] 黄风华[1] 黄碧妃[1] 熊玉箫[1] 林丽萍[1] 

机构地区：[1]福建师范大学化学与化工学院,福建福州350007

出　　处：《合成化学》2013年第2期234-236,共3页Chinese Journal of Synthetic Chemistry

基　　金：福建省自然科学基金资助项目(2009J01022)

摘　　要：以L-半胱氨酸(L-Cys)为修饰剂,采用共沉淀法在水溶液中合成了水溶性L-Cys修饰的ZnS:Mn量子点(1),其结构经IR和XRD表征。利用UV和荧光发射光谱研究了1的光学性质,结果表明:1为立方闪锌矿结构;与体相ZnS的吸收相比(340 nm),1的吸收蓝移;1具有独特的荧光性质,ZnS的特征发射峰为390 nm,Mn2+的特征发射峰为581 nm。ZnS ：Mn quantum dots（l） was synthesized by co-precitation method using L-Cysteine as the modifier in aqueous solution. The structure was characterized by IR and XRD. Optical properties of I were investigated by UV and PL spectrum. The results showed that I belonged to cubic blende structure. The UV absorption of 1 showed a blue shift comparing with bulk ZnS （ 340 nm）. 1 pos- sessed unique fluorescence properties, the characteristic emission peak of ZnS and Mn2＋ was 390 nm and 581 nm, respectively.

关 键 词：L-半胱氨酸 ZNS Mn量子点 合成 荧光性质 

分 类 号：O623.736[理学—有机化学] O627.23[理学—化学]