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ICOP & ICPET 2015, 21 - : 773-776 Back to browse issues page
80 nm of the Photoluminescence displacement of ZnSe core to ZnSe/CdS Core-Shell
Mahsa Mohammadi Miss * 1, Mohammad Hasan Yousefi , Mahdi Davoudi
Abstract:   (1637 Views)
In this essay an aqueous-based TGA route has been demonstrated for the preparation of ZnSe/CdS core/shell nanocrystals. The obtained ZnSe/CdS core/shell nanostructures have tunable and narrow photoluminescence emission (400-550 nm). Changing the shell thickness and thiol ligands result in displacing of both the absorption and fluorescent spectra. Thus, the effect of experimental variables such as the type and amount of thiol ligands, the reaction temperature ,and the amount of pH on the synthesis and optical properties of the obtained core-shell nanocrystals were investigated. Also the PL intensity of the core-shell ZnSe/CdS nanostructures significantly compared with ZnSe nanocrystals improved the size of 80nm and the emission wavelength shift is observed (red shift) due to the growth and CdS shell focuses on the core ZnSe.
Keywords: ZnSe/CdS, photoluminesance, core-shell nanocrystals
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Type of Study: Research | Subject: Special
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Mohammadi M, Yousefi M H, Davoudi M. 80 nm of the Photoluminescence displacement of ZnSe core to ZnSe/CdS Core-Shell. ICOP & ICPET. 2015; 21 :773-776
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Volume 21 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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