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year 27, Issue 2 (ICOP & ICPET 2021 2021)
ICOP & ICPET _ INPC _ ICOFS 2021, 27(2): 158-161 |
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Shariat M. Investigation of optical properties of CdS, CdS:Sn and CdS:Al nanoparticles produced by plasma-liquid interactions. ICOP & ICPET _ INPC _ ICOFS 2021; 27 (2) :158-161
URL: http://opsi.ir/article-1-2330-en.html
URL: http://opsi.ir/article-1-2330-en.html
Department of Physics, Faculty of Science, Vali-e-Asr University of Rafsanjan, Iran
Abstract: (850 Views)
In this work, optical properties of Undoped, doped Sn and doped Al CdS quantum dots (QDs) were studied. These nanostructures successfully prepared with plasma-liquid interactions (PLI) in room temperature. The fabricated CdS,CdS:Sn and CdS:Al QDs were characterized by field emission scanning electron microscopy (FESEM), photoluminescence (PL) and UV-Vis absorption spectroscopy. Increasing the Sn and Al concentration, PL analysis confirmed that the optimal PL intensity took place at 0.75% and 1% concentration, respectively. In these impurity concentrations, the absorption edge both is moved to its maximum red shift comparing with undoped CdS QDs, henceforth absorption spectra are blue shifted.
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