Charge Separation and Recombination in CdTe/CdSe Core/Shell Nanocrystals as a Function of Shell Coverage: Probing the Onset of the Quasi Type-II Regime

2010 ◽  
Vol 1 (17) ◽  
pp. 2530-2535 ◽  
Author(s):  
Chi-Hung Chuang ◽  
Shun S. Lo ◽  
Gregory D. Scholes ◽  
Clemens Burda
Keyword(s):  
Charge Separation ◽  
Core Shell ◽  
Type Ii ◽  
Cdse Core

Photoluminescence properties of CdTe∕CdSe core-shell type-II quantum dots

2006 ◽  
Vol 99 (12) ◽  
pp. 123521 ◽  
Author(s):  
C. H. Wang ◽  
T. T. Chen ◽  
K. W. Tan ◽  
Y. F. Chen ◽  
C. T. Cheng ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Core Shell ◽  
Type Ii ◽  
Photoluminescence Properties ◽  
Cdse Core ◽  
Shell Type

Interfacial Charge Separation and Recombination in InP and Quasi-Type II InP/CdS Core/Shell Quantum Dot-Molecular Acceptor Complexes

2013 ◽  
Vol 117 (32) ◽  
pp. 7561-7570 ◽  
Author(s):  
Kaifeng Wu ◽  
Nianhui Song ◽  
Zheng Liu ◽  
Haiming Zhu ◽  
William Rodríguez-Córdoba ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Charge Separation ◽  
Core Shell ◽  
Type Ii ◽  
Interfacial Charge

Atomistic effect of laterally and vertically growth shell on physical behaviours of CdSe/CdTe type-II core/crown and core/shell nanoplatelets: tight-binding theory

2021 ◽  
Vol 96 (12) ◽  
pp. 125867
Author(s):  
Worasak Sukkabot
Keyword(s):  
Charge Separation ◽  
Tight Binding ◽  
Band Gaps ◽  
Core Shell ◽  
Type Ii ◽  
Binding Theory ◽  
Theoretical Understanding ◽  
Spatial Charge ◽  
The Impact ◽  
Cdte Core

Abstract Utilizing the atomistic tight-binding theory, the impact of the lateral and vertical potential confinement by the coated shell on the CdSe/CdTe core/crown and core/shell nanoplatelets (NPLs) is attained. The spatial charge separation and encapsulated shell have a noteworthy impact on the electronic structures and optical properties because of the type-II band profile. The reduced band gaps with the growing laterally and vertically passivated shell thicknesses are due to the quantum confinement phenomena. The optical band gaps adjusted across the visible light are achieved by the shell thickness change. The excitonic binding energies of CdSe/CdTe core/shell NPLs are larger than those of CdSe/CdTe core/crown NPLs. Thanks to the spatial charge separation, a shortening of the oscillation strengths is concomitant with an increase of the radiative lifetimes. Overall, this scientific research underlines the importance of the theoretical understanding and practical control by lateral and vertical confinement of heterostructure NPLs.

Aqueous synthesis of type-II CdTe/CdSe core–shell quantum dots for fluorescent probe labeling tumor cells

2009 ◽  
Vol 20 (9) ◽  
pp. 095102 ◽  
Author(s):  
Ruosheng Zeng ◽  
Tingting Zhang ◽  
Jincheng Liu ◽  
Song Hu ◽  
Qiang Wan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Tumor Cells ◽  
Fluorescent Probe ◽  
Core Shell ◽  
Type Ii ◽  
Cdse Core ◽  
Aqueous Synthesis

Effect of temperature and pumping power on the photoluminescence properties of type-II CdTe/CdSe core-shell QDs

2011 ◽  
Vol 257 (20) ◽  
pp. 8634-8639 ◽  
Author(s):  
A.M. Saad ◽  
M.M. Bakr ◽  
I.M. Azzouz ◽  
Maram T.H. Abou Kana
Keyword(s):  
Effect Of Temperature ◽  
Core Shell ◽  
Type Ii ◽  
Photoluminescence Properties ◽  
Pumping Power ◽  
Cdse Core

Type-II Quantum Dots:  CdTe/CdSe(Core/Shell) and CdSe/ZnTe(Core/Shell) Heterostructures

2003 ◽  
Vol 125 (38) ◽  
pp. 11466-11467 ◽  
Author(s):  
Sungjee Kim ◽  
Brent Fisher ◽  
Hans-Jürgen Eisler ◽  
Moungi Bawendi
Keyword(s):  
Quantum Dots ◽  
Core Shell ◽  
Type Ii ◽  
Cdse Core

Integration of perovskite type Bi2MoO6 nanosheets onto one dimensional CdS: a type-II heterostructured photocatalytic system for efficient charge separation in the hydrogen evolution reaction

2020 ◽  
Vol 7 (15) ◽  
pp. 2818-2832 ◽  
Author(s):  
Rama Krishna Chava ◽  
Namgyu Son ◽  
Yang Soo Kim ◽  
Misook Kang
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Charge Separation ◽  
Core Shell ◽  
Type Ii ◽  
One Dimensional ◽  
Cds Nanorods ◽  
Photocatalytic System ◽  
Efficient Charge ◽  
Perovskite Type

Bi2MoO6 nanosheets were assembled onto CdS nanorods and the resultant CdS-Bi2MoO6 core–shell heterostructures were utilized for efficient H2 evolution reaction.

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