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

Nonlinear optical properties of core shell type II quantum dot structures

2020 ◽  
Vol 128 ◽  
pp. 106246 ◽  
Author(s):  
Musa Çadirci ◽  
Yasemin Gündoğdu ◽  
Erdem Elibol ◽  
Hamdi Şükür Kılıç
Keyword(s):  
Optical Properties ◽  
Quantum Dot ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Core Shell ◽  
Type Ii ◽  
Shell Type

Ultrafast Charge Separation at the CdSe/CdS Core/Shell Quantum Dot/Methylviologen Interface: Implications for Nanocrystal Solar Cells

2011 ◽  
Vol 115 (10) ◽  
pp. 3949-3955 ◽  
Author(s):  
Lars Dworak ◽  
Victor V. Matylitsky ◽  
Vladimir V. Breus ◽  
Markus Braun ◽  
Thomas Basché ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Charge Separation ◽  
Core Shell

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.

Carbon quantum dot sensitized integrated Fe2O3@g-C3N4 core–shell nanoarray photoanode towards highly efficient water oxidation

2018 ◽  
Vol 6 (21) ◽  
pp. 9839-9845 ◽  
Author(s):  
Sha-Sha Yi ◽  
Jun-Min Yan ◽  
Qing Jiang
Keyword(s):  
Quantum Dot ◽  
Water Oxidation ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Core Shell ◽  
High Catalytic Activity ◽  
Carbon Quantum Dot ◽  
Efficient Charge ◽  
Oxidation Performance ◽  
Charge Separation Efficiency

The carbon quantum dot (CQD) sensitized integrated Ti:Fe2O3@g-C3N4 core–shell nanoarrays demonstrate superior PEC water oxidation performance which can be ascribed to efficient charge separation efficiency derived from the well-confined heterojunction structure together with the high catalytic activity of the CQDs for H2O2 decomposition.

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

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.

Energy spectrum of an exciton in a CdSe/ZnTe type-II core/shell spherical quantum dot

2017 ◽  
Vol 101 ◽  
pp. 40-48 ◽  
Author(s):  
A. Chafai ◽  
F. Dujardin ◽  
I. Essaoudi ◽  
A. Ainane
Keyword(s):  
Energy Spectrum ◽  
Quantum Dot ◽  
Core Shell ◽  
Type Ii ◽  
Spherical Quantum Dot
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