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

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.

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

Journal of Materials Chemistry A ◽

10.1039/c8ta01908h ◽

2018 ◽

Vol 6 (21) ◽

pp. 9839-9845 ◽

Cited By ~ 52

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.

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Wave Function Engineering for Ultrafast Charge Separation and Slow Charge Recombination in Type II Core/Shell Quantum Dots

Journal of the American Chemical Society ◽

10.1021/ja202752s ◽

2011 ◽

Vol 133 (22) ◽

pp. 8762-8771 ◽

Cited By ~ 162

Author(s):

Haiming Zhu ◽

Nianhui Song ◽

Tianquan Lian

Keyword(s):

Quantum Dots ◽

Wave Function ◽

Charge Separation ◽

Charge Recombination ◽

Core Shell ◽

Type Ii

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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

The Journal of Physical Chemistry Letters ◽

10.1021/jz1008399 ◽

2010 ◽

Vol 1 (17) ◽

pp. 2530-2535 ◽

Cited By ~ 99

Author(s):

Chi-Hung Chuang ◽

Shun S. Lo ◽

Gregory D. Scholes ◽

Clemens Burda

Keyword(s):

Charge Separation ◽

Core Shell ◽

Type Ii ◽

Cdse Core

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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

Inorganic Chemistry Frontiers ◽

10.1039/d0qi00339e ◽

2020 ◽

Vol 7 (15) ◽

pp. 2818-2832 ◽

Cited By ~ 1

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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