(Photo)electrochemical Methods for the Determination of the Band Edge Positions of TiO2-Based Nanomaterials

By R. Beranek. 2011

393 citations recorded by the source corpus.

TiO2-based nanomaterials play currently a major role in the development of novel photochemical systems and devices. One of the key parameters determining the photoactivity of TiO2-based materials is the position of the band edges. Although its knowledge is an important prerequisite for understanding and optimizing the performance of photochemical systems, it has been often rather neglected in recent research, particularly in the field of heterogeneous photocatalysis. This paper provides a concise account of main methods for the determination of the position of the band edges, particularly those suitable for measurements on nanostructured materials. In the first part, a survey of key photophysical and photochemical concepts necessary for understanding the energetics at the semiconductor/solution interface is provided. This is followed by a detailed discussion of several electrochemical, photoelectrochemical, and spectroelectrochemical methods that can be applied for the determination of band edge positions in compact and nanocrystalline thin films, as well as in nanocrystalline powders.

Subfields: Electrical and Electronic Engineering, Polymers and Plastics, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/695e26841f8c9b5ee92ec7d2a98ac3ed028a52f5

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In Electrical and Electronic Engineering

In Polymers and Plastics

In Renewable Energy, Sustainability and the Environment

Citations in the corpus

Photoelectrochemical Hydrogen Production (2012, methodology): “7 References ....................................................................................................................... 67 vii List of abbreviations CB Conduction band CE Counter electrode DFT Density functional theory DOS Density of states DRS Diffuse reflectance spectroscopy EIS Elect”