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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Dye-Sensitized Solar Cells
TL;DR: Dye-sensitized solar cells (DSCs) offer the possibilities to design solar cells with a large flexibility in shape, color, and transparency as mentioned in this paper, and many DSC research groups have been established around the world.
Journal ArticleDOI
Graphitic Carbon Nitride (g-C3N4)-Based Photocatalysts for Artificial Photosynthesis and Environmental Remediation: Are We a Step Closer To Achieving Sustainability?
TL;DR: It is anticipated that this review can stimulate a new research doorway to facilitate the next generation of g-C3N4-based photocatalysts with ameliorated performances by harnessing the outstanding structural, electronic, and optical properties for the development of a sustainable future without environmental detriment.
Journal ArticleDOI
Semiconductor-mediated photodegradation of pollutants under visible-light irradiation
TL;DR: In this tutorial review, the unique mechanistic characteristics, the constitution of photodegradation systems and their performance are described and the involved radical reactions during the degradation are discussed.
Journal ArticleDOI
Artificial photosynthesis for solar water-splitting
TL;DR: In this paper, a vision for a future sustainable hydrogen fuel community based on artificial photosynthesis is outlined and current progress towards artificial photosynthetic devices is reviewed, with particular focus on visible light active nanostructures.
Journal ArticleDOI
Spatial separation of photogenerated electrons and holes among {010} and {110} crystal facets of BiVO4
Rengui Li,Fuxiang Zhang,Donge Wang,Jingxiu Yang,Jingxiu Yang,Mingrun Li,Jian Zhu,Jian Zhu,Xin Zhou,Hongxian Han,Can Li +10 more
TL;DR: The results show that the photogenrated electrons and holes can be separated between the different facets of semiconductor crystals, which may be useful in semiconductor physics and chemistry to construct highly efficient solar energy conversion systems.
References
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Journal ArticleDOI
Theoretical solar-to-electrical energy-conversion efficiencies of perylene-porphyrin light-harvesting arrays
Georg M. Hasselman,David F. Watson,Jonathan R. Stromberg,David F. Bocian,Dewey Holten,Jonathan S. Lindsey,Gerald J. Meyer +6 more
TL;DR: The ability to employ fundamental photophysical, kinetic, and structural parameters of modular molecular architectures in assessments of the efficiency of solar-to-electrical energy conversion should facilitate the design of molecular-based solar cells.
Journal ArticleDOI
Slow electron injection on Ru-Phthalocyanine sensitized TiO2.
Ana Morandeira,Ismael López-Duarte,M. Victoria Martínez-Díaz,Brian C. O’Regan,Chris Shuttle,Nor A Haji-Zainulabidin,Tomás Torres,Emilio Palomares,James R Durrant +8 more
TL;DR: This work presents here a system, Ru-phthalocyanine sensitized TiO2, where slow electron injection (kinj ≈ 450 ns-1) and efficient electron injection are compatible owing to the long lifetime of the injecting state, theRu-phthalOCyanine triplet state.
Journal ArticleDOI
Diffusion-Limited Interfacial Electron Transfer with Large Apparent Driving Forces
TL;DR: In this paper, the Re(I) coordination compounds fac-Re(deeb)(CO)3(X), where X is I-, Br-, Cl-, or CN-, have been prepared, characterized, and anchored to nanocrystalline (anatase) TiO2.
Journal ArticleDOI
Is the 3MLCT the only photoreactive state of polypyridyl complexes
TL;DR: For the first time, an optimized geometry for the metal-centered (MC) state is proposed for both of these complexes, and their energies are found to be almost degenerate with their corresponding 3MLCT states.
Journal ArticleDOI
Surface states of titanium dioxide nanoparticles modified with enediol ligands.
TL;DR: Control of surface states of titanium dioxide nanoparticles using 2-(3, 4-dihydroxyphenyl)ethylamine (dopamine) and 3,4- dihydrophenylacetic acid, which act as ligands to the undercoordinated surface sites (carrier traps), is demonstrated by electrochemical techniques.