Journal ArticleDOI
Photodriven heterogeneous charge transfer with transition-metal compounds anchored to TiO2 semiconductor surfaces
Shane Ardo,Gerald J. Meyer +1 more
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A critical review of light-driven interfacial charge-transfer reactions of transition-metal compounds anchored to mesoporous, nanocrystalline TiO2 (anatase) thin films is described.Abstract:
A critical review of light-driven interfacial charge-transfer reactions of transition-metal compounds anchored to mesoporous, nanocrystalline TiO2 (anatase) thin films is described. The review highlights molecular insights into metal-to-ligand charge transfer (MLCT) excited states, mechanisms of interfacial charge separation, inter- and intra-molecular electron transfer, and interfacial charge-recombination processes that have been garnered through various spectroscopic and electrochemical techniques. The relevance of these processes to optimization of solar-energy-conversion efficiencies is discussed (483 references).read more
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Photocatalytic activity of TiO2 nanoparticles: a theoretical aspect
TL;DR: In this paper, a review of the theoretical approach to investigate the photocatalytic activity of modified TiO2 nanoparticles is presented, which includes the density functional theory (DFT) methods used to describe the properties of the system and modelling of the geometric and electronic structure to properly describe actual nanoparticles used in experiments.
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Efficient organic dye-sensitized thin-film solar cells based on the tris(1,10-phenanthroline)cobalt(II/III) redox shuttle
TL;DR: In this article, the tris(1,10-phenanthroline)cobalt(II/III) redox shuttle was used in conjunction with the high-absorption-coefficient organic photosensitizer C218 to fabricate an iodine-free dye-sensitized solar cell displaying an unprecedented 8.3% efficiency at an irradiation of AM 1.5 full sunlight.
Journal ArticleDOI
Visible Light Generation of Iodine Atoms and I-I Bonds: Sensitized I - Oxidation and I3 - Photodissociation
TL;DR: Steady state light excitation of Ru(bpz)(2)(deeb)(2+) in a 20 mM TBAI acetonitrile solution resulted in ligand loss photochemistry with a quantum yield of 5 x 10(-5) and a value consistent with diffusion-limited electron transfer.
Journal ArticleDOI
A Trisheteroleptic Cyclometalated Ru II Sensitizer that Enables High Power Output in a Dye-Sensitized Solar Cell**
TL;DR: Chemical strategies for avoiding the labile Ru NCS bond have been realized recently and remarkably high h values for DSSCs containing NCS -free Ru sensitizers are documented.
Journal ArticleDOI
Donor-Acceptor Interaction Determines the Mechanism of Photoinduced Electron Injection from Graphene Quantum Dots into TiO2: π-Stacking Supersedes Covalent Bonding.
TL;DR: The reported state-of-the-art simulations generate a detailed time-domain, atomistic description of the interfacial charge and energy transfer and relaxation processes, and demonstrate that the fundamental principles leading to efficient charge separation in nanoscale materials depend strongly and often unexpectedly on the type of donor-acceptor interaction.
References
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Journal ArticleDOI
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
TL;DR: In this article, the authors describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency.
Book
Introduction to solid state physics
TL;DR: In this paper, the Hartree-Fock Approximation of many-body techniques and the Electron Gas Polarons and Electron-phonon Interaction are discussed.
Book
Electrochemical Methods: Fundamentals and Applications
Allen J. Bard,Larry R. Faulkner +1 more
TL;DR: In this paper, the authors present a comprehensive overview of electrode processes and their application in the field of chemical simulation, including potential sweep and potential sweep methods, coupled homogeneous chemical reactions, double-layer structure and adsorption.
Journal ArticleDOI
Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells
TL;DR: In this article, an upper theoretical limit for the efficiency of p−n junction solar energy converters, called the detailed balance limit of efficiency, has been calculated for an ideal case in which the only recombination mechanism of holeelectron pairs is radiative as required by the principle of detailed balance.