Study of Fluorescence Quenching and Dialysis Process of CdTe Quantum Dots, Using Ensemble Techniques and Fluorescence Correlation Spectroscopy

2006 ◽  
Vol 110 (23) ◽  
pp. 11069-11075 ◽  
Author(s):  
Chaoqing Dong ◽  
Huifeng Qian ◽  
Nenghu Fang ◽  
Jicun Ren
Keyword(s):  
Quantum Dots ◽  
Fluorescence Quenching ◽  
Fluorescence Correlation Spectroscopy ◽  
Correlation Spectroscopy ◽  
Cdte Quantum Dots ◽  
Fluorescence Correlation ◽  
Ensemble Techniques

Size determination of quantum dots with fluorescence correlation spectroscopy

2011 ◽  
Author(s):  
D. Hill ◽  
C. Ast ◽  
H.-G. Löhmannsröben ◽  
A. Zulqurnain ◽  
W. Parak ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Fluorescence Correlation Spectroscopy ◽  
Correlation Spectroscopy ◽  
Size Determination ◽  
Fluorescence Correlation

scholarly journals Development of a fluorescence correlation spectroscopy instrument and its application in sizing quantum dot nanoparticles

2015 ◽  
Vol 25 (1) ◽  
pp. 59 ◽  
Author(s):  
Nguyen Thi Thanh Bao ◽  
Dinh Van Trung
Keyword(s):  
Quantum Dots ◽  
Fluorescence Correlation Spectroscopy ◽  
Dynamic Properties ◽  
Correlation Spectroscopy ◽  
Fluorescence Signal ◽  
Fluorescence Correlation ◽  
Statistical Fluctuations ◽  
Measurement Results ◽  
Particle Level ◽  
Microscope Imaging

Fluorescence correlation spectroscopy is a relatively new technique to measure and quantify the statistical fluctuations of the fluorescence signal from the measurement volume. Combining with sensitive detection method and confocal microscopy, the FCS technique has become a powerful tool in studying the dynamic properties of nanoparticles at single particle level. In this paper we present the construction of a highly sensitive FCS instrument and the measurement results from a sample of semiconductor quantum dots. We provide the analysis procedure for determining the hydrodynamic radius of the quantum dots and compare the results with that obtained directly from electron microscope imaging. The good agreement indicates the reliability of the FCS technique and open the way for further applications of this technique in studying nanoparticles.

Measurement of the Hydrodynamic Radius of Quantum Dots by Fluorescence Correlation Spectroscopy Excluding Blinking

2015 ◽  
Vol 119 (11) ◽  
pp. 4294-4299 ◽  
Author(s):  
A. A. de Thomaz ◽  
D. B. Almeida ◽  
V. B. Pelegati ◽  
H. F. Carvalho ◽  
C. L. Cesar
Keyword(s):  
Quantum Dots ◽  
Fluorescence Correlation Spectroscopy ◽  
Hydrodynamic Radius ◽  
Correlation Spectroscopy ◽  
Fluorescence Correlation
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