文献类型：期刊文献

英文题名：SYNTHESIS AND PHOTOLUMINESCENCE OF WATER-SOLUBLE ZnS:Mn2+/ZnS QUANTUM DOTS BY NUCLEATION DOPING STRATEGY

作者：Yu, Zhangsen[1];Ma, Xiying[2]

机构：[1]Shaoxing Univ, Sch Med, Shaoxing 312000, Peoples R China;[2]Suzhou Univ Sci & Technol, Sch Math & Phys, Suzhou 215011, Jiangsu, Peoples R China

年份：2011

卷号：6

期号：1

起止页码：75

外文期刊名：NANO

收录：SCI-EXPANDED(收录号：WOS:000288223200008)、、EI(收录号：20111113757461)、Scopus(收录号：2-s2.0-79952578929)、WOS

语种：英文

外文关键词：ZnS:Mn2+/ZnS quantum dots; water-soluble; nucleation doping strategy

外文摘要：We report the synthesis of luminescent-doped core/shell quantum dots (QDs) of water-soluble manganese-doped zinc sulfide (ZnS:Mn2+/ZnS). QDs of ZnS:Mn2+/ZnS were prepared by nucleation doping strategy, with thioglycolic acid (TGA) as stabilizer in aqueous solution. Structure and optical properties of the ZnS:Mn2+/ZnS core/shell quantum dots were characterized by X-ray diffraction and photoluminescence emission spectroscopy. The influence of the synthesis conditions on the luminescent properties of ZnS:Mn2+/ZnS QDs is discussed. Different Mn2+ concentrations, ratios of the TGA/(Zn+Mn) and thickness of the ZnS shell were used. Results showed that the ZnS:Mn2+/ZnS QDs are water-soluble and have improved fluorescence properties. Therefore, Mn2+-doped ZnS quantum dots could be potential candidates as fluorescent labeling agents in biology.