Nowotny J. Oxide Semiconductors for Solar Energy Conversion: Titanium Dioxide

CRC Press, Taylor & Francis Group, 2012. XXX, 393 p. 291 Illustrations. — ISBN: 978-1-4398-4839-5 (Hardback).Features
Presents a comprehensive survey on the properties of oxide semiconductors, including defect chemistry, electrical properties, diffusion, segregation, and reactivity
Compares surface versus bulk semiconducting properties of oxide
Provides the first treatise on TiO2 semiconductors, covering structure, nonstoichiometry, anisotropy, defect equilibria, defect diagrams, electrical properties, diffusion, segregation, surface properties, reactivity, and photoreactivity
Discusses the photocatalytic purification of water using solar energy
Describes the photoelectrochemical generation of hydrogen fuel by water splittingOxide semiconductors, including titanium dioxide (TiO2), are increasingly being considered as replacements for silicon in the development of the next generation of solar cells. Oxide Semiconductors for Solar Energy Conversion: Titanium Dioxide presents the basic properties of binary metal oxide semiconductors and the performance-related properties of TiO2 as they relate to solar energy.
The book provides a general background on oxide semiconductors based on binary oxides and their solid solutions, including electronic and ionic conductors. It covers several aspects of solid-state electrochemistry of oxides, such as defect chemistry, and defect-related properties, such as electrical properties, diffusion, segregation, and reactivity. The author also takes a pioneering approach in considering bulk versus surface semiconducting properties, showing how they are different due to the effect of segregation.
One of the first on semiconducting, photocatalytic, and photoelectrochemical properties of TiO2 and its solid solutions with donor- and acceptor-type ions, the book discusses defect chemistry of TiO2 in terms of defect equilibria and defect-related properties, including electrical properties, self and chemical diffusion, surface properties, segregation, and reactivity and photoreactivity with oxygen, water, and microbial agents. The text also illustrates the use of TiO2 as an emerging material for solar energy conversion systems, including the generation of hydrogen fuel by photoelectrochemical water splitting, the photocatalytic purification of water, and the generation of photovoltaic electricity. In addition, it presents defect disorder diagrams for the formation of TiO2-based semiconductors with controlled properties.
Encompassing the areas of solid-state science, surface chemistry, and photocatalysis, this book reflects the increasing awareness of the importance of structural imperfections, such as point defects, in understanding the properties of metal oxides, specifically TiO2-based semiconductors.Solid-State Electrochemistry of Binary Metal OxidesStructural Defects
Nonstoichiometry
Point Defects in Binary Metal Oxides
Band Model
Electrical Properties
Effect of Interfaces
Diffusion
Oxygen Ion Conductors
Concluding RemarksLight-Induced EffectsSolar Radiation
Solar Energy Spectrum
Light Source
Light-Induced Effects in Semiconductors
Data Reproducibility
Energy Conversion Efficiency
Light Measurements
Concluding RemarksBasic Properties of TiO2Titanium Oxides
Titanium TiO2
Concluding Remarks
Defect Chemistry
Undoped TiO2
Doping with Aliovalent Ions
Reactivity of TiO2 with Hydrogen
The Real Chemical Formula of TiO2
Concluding RemarksElectrical PropertiesElectrical Conductivity
Thermoelectric Power
Jonker Analysis
Work Function
Surface Photovoltage Spectroscopy
Hall Effect
Coulometric Titration
Concluding RemarksDiffusionMass Transport Kinetics
Self-Diffusion
Chemical Diffusion
Concluding RemarksEffect of InterfacesEffect of Surface Properties on Reactivity
Segregation
Reactivity
Concluding RemarksApplicationsPerformance-Related Properties
Solar Hydrogen
Hydrogen Generation by Photoelectrochemical Water Splitting
Solar Water Purification
Alternative Applications
Summary and Concluding RemarksAppendix