Synthesis of ZnS, CdS and Core-Shell Mixed CdS/ZnS, ZnS/CdS Nanocrystals in Tapioca Starch Matrix  

作　　者：Karen Khachatryan Gohar Khachatryan Maciej Fiedorowicz 

机构地区：[1]Department of Chemistry and Physics, Agricultural University, Cracow, Poland

出　　处：《Journal of Materials Science and Chemical Engineering》2015年第11期30-38,共9页材料科学与化学工程（英文）

摘　　要：Gel of tapioca starch (TS) is a suitable matrix for the formation of ZnS, CdS and core-shell ZnS/CdS as well as CdS/ZnS quantum dots (QDs). These QDs reside in the matrix as non-agglomerating 3 - 10 nm nanocrystals. It is demonstrated that amylopectin is responsible for the QDs formation rather than amylose. Combination of ZnS with CdS in the core-shell QDs results in the increase in the intensity of emission without any shift of its wavelength.Gel of tapioca starch (TS) is a suitable matrix for the formation of ZnS, CdS and core-shell ZnS/CdS as well as CdS/ZnS quantum dots (QDs). These QDs reside in the matrix as non-agglomerating 3 - 10 nm nanocrystals. It is demonstrated that amylopectin is responsible for the QDs formation rather than amylose. Combination of ZnS with CdS in the core-shell QDs results in the increase in the intensity of emission without any shift of its wavelength.

关 键 词：Bilayered QUANTUM DOTS Luminescent BIOCOMPOSITES QUANTUM DOTS TAPIOCA Starch 

分 类 号：R73[医药卫生—肿瘤]