Ion exchange growth of Zinc Sulfide quantum dots in aqueous solution

We report the growth by ion exchange synthesis of ZnS nanoparticles in MCM-۴۱ matrices using Zn (CH۳COO)۲ and Na۲S starting sources. The final product (ZnS/MCM-۴۱) 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.

Keywords:

Quantum dots , semiconductors , Chemical synthesis , Scanning Electron Microscopy (SEM) , Transmission Electron microscopy (TEM)

Authors

A. Pourahmad

Department of Chemistry, Guilan Science and Research Branch, Islamic Azad University, Guilan, Iran.

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https://civilica.com/doc/1483244

شناسه ملی سند علمی:

JR_IJND-6-1_011

تاریخ نمایه سازی: 24 تیر 1401

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Pourahmad, A.,1394,Ion exchange growth of Zinc Sulfide quantum dots in aqueous solution,https://civilica.com/doc/1483244

Scientometrics

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Ranking of Islamic Azad University of Rasht

Type of center: Azad University

Paper count: 7,895

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