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http://dx.doi.org/10.4313/JKEM.2013.26.3.221

The Synthesis and Optical Properties of Silica Coated CdSe/ZnS QDs  

Lee, Ji-Hye (Nano-IT Materials Lab, Advanced Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology(KICET))
Shin, Hyun Ho (Nano-IT Materials Lab, Advanced Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology(KICET))
Lee, Jong-Heun (Department of Materials Sience and Engineering, Korea University)
Hyun, Sang Il (Nano-IT Materials Lab, Advanced Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology(KICET))
Koo, Eunhae (Nano-IT Materials Lab, Advanced Materials Convergence Division, Korea Institute of Ceramic Engineering and Technology(KICET))
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.26, no.3, 2013 , pp. 221-226 More about this Journal
Abstract
The water soluble quantum dots (QDs) are synthesized by the phase transfer and silica coating reaction. The photoluminescence intensity of silica-coated QDs are mainly affected by the amount of phase transfer agent, SDS (sodium dodecyl sulfate), and the maximum value is obtained at the cmc (critical micell concentration) concentration of SDS in the phase transfer reaction. Based on fluorescence spectra and field emission transmission electron microscope (FETEM), the energy transfer rate by forster resonance energy transfer (FRET) is increasing with the thickness of the silica shell coated on CdSe/ZnS QDs.
Keywords
CdSe/ZnS; Quantum dots; silica coating; FRET;
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