Predictable spectroscopic properties of type-II ZnTe/CdSe nanocrystals and electron/hole quenching

2019 ◽  
Vol 21 (10) ◽  
pp. 5824-5833 ◽  
Author(s):  
Tongqing Long ◽  
Jun Cao ◽  
Zhong-Jie Jiang
Keyword(s):  
Effective Mass ◽  
Spectroscopic Properties ◽  
Effective Mass Approximation ◽  
Cdse Nanocrystals ◽  
Core Shell ◽  
Type Ii ◽  
Electron Hole ◽  
Mass Approximation ◽  
P Type

Type II core/shell ZnTe/CdSe NCs have been synthesized and their spectroscopic properties can be accurately predicted by a simple effective mass approximation.

scholarly journals Correction: Predictable spectroscopic properties of type-II ZnTe/CdSe nanocrystals and electron/hole quenching

2020 ◽  
Vol 22 (10) ◽  
pp. 6011-6011
Author(s):  
Tongqing Long ◽  
Jun Cao ◽  
Zhong-Jie Jiang
Keyword(s):  
Spectroscopic Properties ◽  
Chem Phys ◽  
Cdse Nanocrystals ◽  
Type Ii ◽  
Electron Hole ◽  
Phys Chem Chem Phys

Correction for ‘Predictable spectroscopic properties of type-II ZnTe/CdSe nanocrystals and electron/hole quenching’ by Tongqing Long et al., Phys. Chem. Chem. Phys., 2019, 21, 5824–5833.

Chiroptical Activity of Type II Core/Shell Cu2S/CdSe Nanocrystals

2019 ◽  
Vol 58 (9) ◽  
pp. 6534-6543 ◽  
Author(s):  
Xiao Shao ◽  
Tianyong Zhang ◽  
Bin Li ◽  
Minghao Zhou ◽  
Xiaoyuan Ma ◽  
...  
Keyword(s):  
Cdse Nanocrystals ◽  
Core Shell ◽  
Type Ii

Interband Optical Transition Energies in Type-II PbSe/PbS Core/Shell Quantum Dots

2017 ◽  
Vol 6 (1) ◽  
pp. 80-86
Author(s):  
S. N. Saravanamoorthy ◽  
A. John Peter
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Shell Thickness ◽  
Optical Transition ◽  
Hole Pair ◽  
Core Shell ◽  
Type Ii ◽  
Electron Hole ◽  
Transition Energies ◽  
Electron Hole Pair

Electronic and optical properties of Type-II lead based core/shell semiconducting quantum dots are reported. Binding energies of electron–hole pair, optical transition energies and the absorption coefficients are investigated taking into account the geometrical confinement in PbSe/PbS core/shell quantum dot nanostructure. The energies are obtained with the increase of shell thickness for various inner core radii. The probability densities of electron and hole wave functions of radial coordinate of the core PbSe and PbS shell quantum dots are presented. The optical transition energy with the spatial confinement is brought out. The electronic properties are obtained using variational approach whereas the compact density matrix method is employed for the nonlinear optical properties. The results show that (i) a decrease in binding energy is obtained when the shell thickness increases due to more separation of electron–hole pair and (ii) the energy band gap decreases with the increase in the shell thickness resulting in the reduction of the higher energy interband transitions.

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