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

Molecular Size Determination of Coal-Derived Asphaltene by Fluorescence Correlation Spectroscopy

2011 ◽  
Vol 65 (12) ◽  
pp. 1348-1356 ◽  
Author(s):  
A. Ballard Andrews ◽  
Wei-Chuan Shih ◽  
Oliver C. Mullins ◽  
Koyo Norinaga
Keyword(s):  
Fluorescence Correlation Spectroscopy ◽  
Molecular Size ◽  
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.

Determination of quantum yields of semiconductor nanocrystals at the single emitter level via fluorescence correlation spectroscopy

Nanoscale ◽  
2018 ◽  
Vol 10 (15) ◽  
pp. 7147-7154 ◽  
Author(s):  
Gerardo Abbandonato ◽  
Katrin Hoffmann ◽  
Ute Resch-Genger
Keyword(s):  
Fluorescence Correlation Spectroscopy ◽  
Semiconductor Nanocrystals ◽  
Correlation Spectroscopy ◽  
Quantum Yields ◽  
Fluorescence Correlation ◽  
Fluorescence Quantum Yields ◽  
Ultralow Concentration ◽  
Single Emitter

A microscopy-based method to determine fluorescence quantum yields ΦF of dispersed semiconductor nanocrystals at ultralow concentration with fluorescence correlation spectroscopy (FCS) is presented.

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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