Author(s)

Karen Khachatryan, Gohar Khachatryan, Maciej Fiedorowicz

Department of Chemistry and Physics, Agricultural University, Cracow, Poland.

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.

Bilayered Quantum Dots, Luminescent Biocomposites, Quantum Dots, Tapioca Starch

Khachatryan, K. , Khachatryan, G. and Fiedorowicz, M. (2015) Synthesis of ZnS, CdS and Core-Shell Mixed CdS/ZnS, ZnS/CdS Nanocrystals in Tapioca Starch Matrix. Journal of Materials Science and Chemical Engineering, 3, 30-38. doi: 10.4236/msce.2015.311005.