Journal ArticleDOI
Photoinduced transformations in semiconductor-metal nanocomposite assemblies*
Reads0
Chats0
TLDR
In this paper, the effect of charge accumulation in the metal layer results in Fermi-level equilibration raising the quasi-Fermi level of the composite close to the conduction band level of oxide semiconductor.Abstract:
Semiconductor-metal nanocomposites provide a simple and convenient way to tai- lor the properties of photocatalysts. Modification of semiconductor surface improves charge separation and promotes interfacial charge-transfer processes in nanocomposite systems. Charge accumulation in the metal layer results in Fermi-level equilibration raising the quasi- Fermi level of the composite close to the conduction band level of the oxide semiconductor. Phototransformations of such composites—including morphological changes, interfacial charge-transfer processes and photocurrent generation of TiO 2 -capped gold colloids—are presented in this review article.read more
Citations
More filters
Journal ArticleDOI
Quantum Dot Solar Cells. Semiconductor Nanocrystals as Light Harvesters
TL;DR: In this paper, three major ways to utilize semiconductor dots in solar cell include (i) metal−semiconductor or Schottky junction photovoltaic cell, (ii) polymer−smiconductor hybrid solar cell, and (iii) quantum dot sensitized solar cell.
Journal ArticleDOI
Meeting the Clean Energy Demand: Nanostructure Architectures for Solar Energy Conversion
TL;DR: In this article, three major ways to utilize nanostructures for the design of solar energy conversion devices are discussed: (i) mimicking photosynthesis with donor−acceptor molecular assemblies or clusters, (ii) semiconductor assisted photocatalysis to produce fuels such as hydrogen, and (iii) nanostructure semiconductor based solar cells.
Journal ArticleDOI
Catalysis with TiO2/Gold Nanocomposites. Effect of Metal Particle Size on the Fermi Level Equilibration
TL;DR: The size-dependent shift in the apparent Fermi level of the TiO(2)-Au composite shows the ability of Au nanoparticles to influence the energetics by improving the photoinduced charge separation.
Journal ArticleDOI
Charge Separation and Catalytic Activity of Ag@TiO2 Core−Shell Composite Clusters under UV−Irradiation
TL;DR: Charge equilibration with redox couple such as C60/C60*- shows the ability of these core shell structures to carry out photocatalytic reduction reactions.
Journal ArticleDOI
Visible light driven type II heterostructures and their enhanced photocatalysis properties: a review
TL;DR: The application of type II heterostructured semiconductors in the area of environmental remediation and water splitting is traced, major fabrication methods are summarized, some of the progress and resulting achievements are described, and the future prospects are discussed.
References
More filters
Book
Semiconductor nanoclusters-physical, chemical, and catalytic aspects
Prashant V. Kamat,Dan Meisel +1 more
TL;DR: The mechanics of nanoscale suspensions (K.J. Nozik et al. as mentioned in this paper ) and charge transfer in nanoparticles (D.V. Kamat, D.F. Meisel).