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Controlling The Electron-Transfer Kinetics Of Quantum-Dot Assemblies
Ruibin Liu, B. Bloom, D. Waldeck, P. Zhang, D. Beratan
Published 2017 · Chemistry
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Electron transfer theory is used to explore the size-dependence of electron transfer (ET) between dithiol-bridged quantum dots (QDs) and make predictions that can be tested experimentally. Electronic couplings, electronic densities of states, and reaction-free energies are all found to be size-dependent and to influence the ET rates. As the acceptor QD radius grows at fixed edge-to-edge donor–acceptor distance, the reaction-free energy becomes more negative. As a result, both electron and hole transfer rates show a peak as a function of acceptor radius for donor radii ranging from 9.5 to 21.5 A; however, this rate maximum as a function of radius is weaker than that observed in molecules, since the increasing acceptor density of states partially compensates both the Marcus inverted effect and the decreased electronic coupling with increasing radius. The electronic coupling decreases as the donor radius grows because the wave function probability density per surface atom decreases and the acceptor density o...
This paper references
Variation of energy density of states in quantum dot arrays due to interparticle electronic coupling.
M. Logar (2015)
Covalent Linking Greatly Enhances Photoinduced Electron Transfer in Fullerene-Quantum Dot Nanocomposites: Time-Domain Ab Initio Study.
V. Chaban (2013)
Determination of the Electronic Energetics of CdTe Nanoparticle Assemblies on Au Electrodes by Photoemission, Electrochemical, and Photocurrent Studies
Y. Wang (2012)
Enhanced rate of radiative decay in CdSe quantum dots upon adsorption of an exciton-delocalizing ligand.
Shengye Jin (2014)
Ultrafast Hole/Electron Transfer Dynamics in a CdSe Quantum Dot Sensitized by Pyrogallol Red: A Super-Sensitization System
Pallavi Singhal (2014)
Density of Surface States at CdSe Quantum Dots by Fitting of Temperature-Dependent Surface Photovoltage Transients with Random Walk Simulations
S. Fengler (2013)
Charge-transfer in a π-stacked fullerene porphyrin dyad: evidence for back electron transfer in the ‘Marcus-inverted’ region
D. Guldi (2000)
Electronic structure and band gap engineering of CdTe semiconductor nanowires
S. Sarkar (2012)
Size-dependent band gap of colloidal quantum dots
S. Baskoutas (2006)
Conversion efficiency improvement mechanisms of polymer solar cells by balance electron–hole mobility using blended P3HT:PCBM:pentacene active layer
C. Lee (2013)
Quantum confinement effects of semiconducting microcrystallites in glass
N. Borrelli (1987)
Boosting power conversion efficiencies of quantum-dot-sensitized solar cells beyond 8% by recombination control.
K. Zhao (2015)
Ultrafast Electron Injection, Hole Transfer, and Charge Recombination Dynamics in CdSe QD Super-Sensitized Re(I)–Polypyridyl Complexes with Catechol and Resorcinol Moiety: Effect of Coupling
Tushar Debnath (2015)
Electroluminescence from a mixed red-green-blue colloidal quantum dot monolayer.
P. Anikeeva (2007)
Tight-binding studies of surface effects on electronic structure of CdSe nanocrystals: the role of organic ligands, surface reconstruction, and inorganic capping shells
S. Pokrant (1999)
Calculation of the effective masses of II-VI semiconductor compounds
Albert R. Ponce (2003)
Design Rules for High-Efficiency Quantum-Dot-Sensitized Solar Cells: A Multilayer Approach.
Menny Shalom (2012)
Fine structure and size dependence of exciton and biexciton optical spectra in CdSe nanocrystals
M. Korkusiński (2010)
High-efficiency dye-sensitized solar cells: the influence of lithium ions on exciton dissociation, charge recombination, and surface states.
Q. Yu (2010)
Theory of the quantum confinement effect on excitons in quantum dots of indirect-gap materials.
Ab Initio Analysis of Auger-Assisted Electron Transfer.
K. Hyeon-Deuk (2015)
Substrate driven photochemistry of CdSe quantum dot films: charge injection and irreversible transformations on oxide surfaces.
K. Tvrdy (2009)
High-Efficiency Colloidal Quantum Dot Photovoltaics via Robust Self-Assembled Monolayers.
Gihwan Kim (2015)
Ab Initio Simulation of Charge Transfer at the Semiconductor Quantum Dot/TiO2 Interface in Quantum Dot-Sensitized Solar Cells
Xukai Xin (2015)
Subpicosecond Photoinduced Hole Transfer from a CdS Quantum Dot to a Molecular Acceptor Bound Through an Exciton-Delocalizing Ligand.
Shichen Lian (2016)
Beyond photovoltaics: semiconductor nanoarchitectures for liquid-junction solar cells.
P. Kamat (2010)
Electron Transfer and Fluorescence Quenching of Nanoparticle Assemblies
M. Wu (2010)
Hybrid bulk-heterojunction solar cells based on all inorganic nanoparticles
Furui Tan (2014)
Optical gain and stimulated emission in nanocrystal quantum dots.
V. Klimov (2000)
Charge transport in strongly coupled quantum dot solids.
C. R. Kagan (2015)
Synchronized energy and electron transfer processes in covalently linked CdSe-squaraine dye-TiO2 light harvesting assembly.
Hyunbong Choi (2012)
Electron injection from colloidal PbS quantum dots into titanium dioxide nanoparticles.
Byung-Ryool Hyun (2008)
Hybrid passivated colloidal quantum dot solids.
A. Ip (2012)
Size and Temperature Dependence of Electron Transfer between CdSe Quantum Dots and a TiO2 Nanobelt
D. Tafen (2015)
Combining ligand-induced quantum-confined stark effect with type II heterojunction bilayer structure in CdTe and CdSe nanocrystal-based solar cells.
Nir Yaacobi-Gross (2012)
Photoinduced electron transfer from semiconductor quantum dots to metal oxide nanoparticles
K. Tvrdy (2010)
Charge separation in type II tunneling multilayered structures of CdTe and CdSe nanocrystals directly proven by surface photovoltage spectroscopy.
D. Gross (2010)
Semi-empirical tight binding modelling of CdSTe/CdTe, ZnSSe/ZnSe and ZnSSe/ CdSe heterostructures
Ö. Akıncı (2009)
Ultrafast Charge Transfer Dynamics in Photoexcited CdTe Quantum Dot Decorated on Graphene
S. Kaniyankandy (2012)
Colloidal PbS quantum dot solar cells with high fill factor.
Ni Zhao (2010)
Hybrid morphology dependence of CdTe:CdSe bulk-heterojunction solar cells
Furui Tan (2014)
High-Efficiency Nonfullerene Polymer Solar Cell Enabling by Integration of Film-Morphology Optimization, Donor Selection, and Interfacial Engineering.
X. Zhang (2016)
Multiple state representation scheme for organic bulk heterojunction solar cells: A novel analysis perspective
M. Einax (2013)
Quantum Dot Solar Cells. Semiconductor Nanocrystals as Light Harvesters
P. Kamat (2008)
Coherence in energy transfer and photosynthesis.
A. Chenu (2015)
Enhancement of the Yield of Photoinduced Charge Separation in Zinc Porphyrin–Quantum Dot Complexes by a Bis(dithiocarbamate) Linkage
S. Jin (2015)
A Semi-empirical tight-binding theory of the electronic structure of semiconductors†☆
P. Vogl (1983)
Photoexcited carrier dynamics of double-layered CdS/CdSe quantum dot sensitized solar cells measured by heterodyne transient grating and transient absorption methods.
N. Osada (2014)
Quantum confinement and light emission in SiO2/Si superlattices
Z. Lu (1995)
Size-Dependent Charge Transfer Yields in Conjugated Polymer/Quantum Dot Blends
Hirokazu Nagaoka (2014)
Charge-extraction strategies for colloidal quantum dot photovoltaics.
X. Lan (2014)
Size-dependent electron injection from excited CdSe quantum dots into TiO2 nanoparticles.
István Robel (2007)
Electron-hole correlations in semiconductor quantum dots with tight-binding wave functions
Seungwon Lee (2001)
Hole transfer dynamics from a CdSe/CdS quantum rod to a tethered ferrocene derivative.
K. Tarafder (2014)
Electron Transfer in Nanoparticle Dyads Assembled on a Colloidal Template.
B. Graff (2016)
Auger-assisted electron transfer from photoexcited semiconductor quantum dots.
Haiming Zhu (2014)
Improved performance and stability in quantum dot solar cells through band alignment engineering
C. Chuang (2014)
Dynamics of a Covalently Conjoined FRET Dye Ensemble for Electron Injection into ZnO Nanorods
R. Schütz (2014)
Charge Transport in a Quantum Dot Supercrystal
Iek-Heng Chu (2011)
Experimental observation of quantum confinement in the conduction band of CdSe quantum dots.
J. Lee (2007)
Electrochemically Guided Photovoltaic Devices: A Photocurrent Study of the Charge Transfer Directionality between CdTe and CdSe Nanoparticles
Y. Wang (2011)
Electronic Structure of Thiol-Capped CdTe Quantum Dots and CdTeQD−Carbon Nanotube Nanocomposites
S. Sarkar (2012)
Enhanced charge transfer kinetics of CdSe quantum dot-sensitized solar cell by inorganic ligand exchange treatments.
H. Yun (2014)
Controlling charge separation and recombination rates in CdSe/ZnS type I core-shell quantum dots by shell thicknesses.
Haiming Zhu (2010)
Comparison between calculated and experimental values of the lowest excited electronic state of small CdSe crystallites.
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X. Zhang (2019)
Using Semiconductor Nanocrystals to Drive Redox Enzymes with Light
Hayden Hamby (2018)
Directing Charge Transfer in Quantum Dot Assemblies.
B. Bloom (2018)
Nanoscale Photoinduced Charge Transfer with Individual Quantum Dots: Tunability through Synthesis, Interface Design, and Interaction with Charge Traps
Jia-Shiang Chen (2019)
Size-controlled electron transfer rates determine hydrogen generation efficiency in colloidal Pt-decorated CdS quantum dots.
W. Li (2018)