Ion exchange growth of Zinc Sulfide quantum dots in aqueous solution
Publish place: International Journal of Nano Dimension، Vol: 6، Issue: 1
Publish Year: 1394
Type: Journal paper
Language: English
View: 157
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Document National Code:
JR_IJND-6-1_011
Index date: 14 July 2022
Ion exchange growth of Zinc Sulfide quantum dots in aqueous solution abstract
We report the growth by ion exchange synthesis of ZnS nanoparticles in MCM-41 matrices using Zn (CH3COO)2 and Na2S starting sources. The final product (ZnS/MCM-41) was characterized by X-ray diffraction (XRD) pattern, transmission electron microscopy (TEM), scanning electron microscopy (SEM), infrared spectrometry (IR) and UV-vis spectroscopy. Its crystalline structure and morphology was studied by XRD and scanning electron microscopy. Exciton absorption peaks at higher energy than the fundamental absorption edge of bulk ZnS indicates quantum confinement effects in nanoparticles as a consequence of their small size.
Ion exchange growth of Zinc Sulfide quantum dots in aqueous solution Keywords:
Quantum dots , semiconductors , Chemical synthesis , Scanning Electron Microscopy (SEM) , Transmission Electron microscopy (TEM)
Ion exchange growth of Zinc Sulfide quantum dots in aqueous solution authors
A. Pourahmad
Department of Chemistry, Guilan Science and Research Branch, Islamic Azad University, Guilan, Iran.