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Karen Khachatryan, Gohar Khachatryan, Maciej Fiedorowicz

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

DOI: 10.4236/msce.2015.311005

Abstract

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.

KEYWORDS

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

Cite this paper

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.

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