scholarly journals Influence of Thiol Capping on the Exciton Luminescence and Decay Kinetics of CdTe and CdSe Quantum Dots

2004 ◽  
Vol 108 (45) ◽  
pp. 17393-17397 ◽  
Author(s):  
Sander F. Wuister ◽  
Celso de Mello Donegá ◽  
Andries Meijerink
Keyword(s):  
Quantum Dots ◽  
Cdse Quantum Dots ◽  
Exciton Luminescence ◽  
Decay Kinetics ◽  
Kinetics Of

Nonexponential “blinking” kinetics of single CdSe quantum dots: A universal power law behavior

2000 ◽  
Vol 112 (7) ◽  
pp. 3117-3120 ◽  
Author(s):  
M. Kuno ◽  
D. P. Fromm ◽  
H. F. Hamann ◽  
A. Gallagher ◽  
D. J. Nesbitt
Keyword(s):  
Quantum Dots ◽  
Power Law ◽  
Cdse Quantum Dots ◽  
Universal Power Law ◽  
Kinetics Of

Decay Kinetics of Electron-Hole-Drop and Free-Exciton Luminescence in Ge: Evidence for Large Drops

1974 ◽  
Vol 32 (19) ◽  
pp. 1051-1054 ◽  
Author(s):  
R. M. Westervelt ◽  
T. K. Lo ◽  
J. L. Staehli ◽  
C. D. Jeffries
Keyword(s):  
Free Exciton ◽  
Exciton Luminescence ◽  
Decay Kinetics ◽  
Electron Hole ◽  
Kinetics Of

Decay Kinetics of Electron-Hole-Drop and Free-Exciton Luminescence in Ge: Evidence for Large Drops.

1974 ◽  
Vol 32 (23) ◽  
pp. 1331-1331 ◽  
Author(s):  
R. Westervelt ◽  
T. Lo ◽  
J. Staehli ◽  
C. Jeffries
Keyword(s):  
Free Exciton ◽  
Exciton Luminescence ◽  
Decay Kinetics ◽  
Electron Hole ◽  
Kinetics Of

scholarly journals Ultrafast Quenching of Excitons in the ZnxCd1-xS/ ZnS Quantum Dots Doped with Mn2+ through Charge Transfer Intermediates Results in Manganese Luminescence

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3007
Author(s):  
Dmitry Cherepanov ◽  
Andrei Kostrov ◽  
Fedor Gostev ◽  
Ivan Shelaev ◽  
Mikhail Motyakin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Charge Transfer ◽  
Electric Field ◽  
Transient Absorption ◽  
Kinetic Scheme ◽  
Stark Shift ◽  
Stimulated Emission ◽  
Decay Kinetics ◽  
Femtosecond Transient Absorption ◽  
Kinetics Of

For the first time, a specific time-delayed peak was registered in the femtosecond transient absorption (TA) spectra of ZnxCd1-xS/ZnS (x~0.5) alloy quantum dots (QDs) doped with Mn2+, which was interpreted as the electrochromic Stark shift of the band-edge exciton. The time-delayed rise and decay kinetics of the Stark peak in the manganese-doped QDs significantly distinguish it from the kinetics of the Stark peak caused by exciton–exciton interaction in the undoped QDs. The Stark shift in the Mn2+-doped QDs developed at a 1 ps time delay in contrast to the instantaneous appearance of the Stark shift in the undoped QDs. Simultaneously with the development of the Stark peak in the Mn2+-doped QDs, stimulated emission corresponding to 4T1-6A1 Mn2+ transition was detected in the subpicosecond time domain. The time-delayed Stark peak in the Mn2+-doped QDs, associated with the development of an electric field in QDs, indicates the appearance of charge transfer intermediates in the process of exciton quenching by manganese ions, leading to the ultrafast Mn2+ excitation. The usually considered mechanism of the nonradiative energy transfer from an exciton to Mn2+ does not imply the development of an electric field in a QD. Femtosecond TA data were analyzed using a combination of empirical and computational methods. A kinetic scheme of charge transfer processes is proposed to explain the excitation of Mn2+. The kinetic scheme includes the reduction of Mn2+ by a 1Se electron and the subsequent oxidation of Mn1+ with a hole, leading to the formation of an excited state of manganese.

Effect of Cd0.5Zn0.5S shells on temperature-dependent luminescence kinetics of CdSe quantum dots

RSC Advances ◽  
2014 ◽  
Vol 4 (82) ◽  
pp. 43800-43805 ◽  
Author(s):  
Ping Yang ◽  
Hsueh-Shih Chen ◽  
Sha Zhang ◽  
Jie Zhao ◽  
Yingying Du ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cdse Quantum Dots ◽  
Temperature Dependent ◽  
Luminescence Kinetics ◽  
Kinetics Of

Investigations on the formation kinetics of CdSe quantum dots

2000 ◽  
Vol 214-215 ◽  
pp. 698-702 ◽  
Author(s):  
D Schikora ◽  
S Schwedhelm ◽  
I Kudryashov ◽  
K Lischka ◽  
D Litvinov ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cdse Quantum Dots ◽  
Formation Kinetics ◽  
Kinetics Of

Growth kinetics of CdSe quantum dots generated in polar polymers

2012 ◽  
Vol 41 (47) ◽  
pp. 14354 ◽  
Author(s):  
Isabella Concina ◽  
Marta Maria Natile ◽  
Eugenio Tondello ◽  
Giorgio Sberveglieri
Keyword(s):  
Quantum Dots ◽  
Growth Kinetics ◽  
Cdse Quantum Dots ◽  
Polar Polymers ◽  
Kinetics Of
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