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ICOP & ICPET 2018, 24 - : 545-548 Back to browse issues page
Photostability of CdTe/CdS Core/Shell Quantum Dots
Shokufeh Karimi * 1, Hakimeh Zare 1, Yousef Fazaeli 2
1- Department of Physics, Yazd University
2- Radiation Application Research School, Nuclear Science and Technology Research Institute
Abstract:   (198 Views)

Thioglycolic acid stabilized CdTe/CdS core/shell quantum dots were synthesized in an aqueous solution. The photostability of the CdTe/CdS core/shell quantum dots to UV irradiation is investigated. The optical spectra were measured after different intervals of irradiation time. The irradiation led to an improvement of the quantum yield of quantum dots. With extending of the irradiation time (18 h), the CdTe quantum dots aggregated, but CdTe/CdS core/shell quantum dots were stable. Therefore, the presence of CdS shell on the surface of quantum dots increases their photostability. The high photostability of QDs is important in biology applications.

Keywords: Quantum dots, CdTe/CdS, Core/shell structure, Aqueous synthesis, Photostability
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Type of Study: Research | Subject: Special
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Karimi S, Zare H, Fazaeli Y. Photostability of CdTe/CdS Core/Shell Quantum Dots. ICOP & ICPET. 2018; 24 :545-548
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Volume 24 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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