Handbook of Gas Sensor Materials: Properties, Advantages and Shortcomings for Applications Volume 1: Conventional Approaches

Vol. 1. Conventional Approaches Preface Chapter 1: Introduction 1. Gas sensors and their role in industry, agriculture, medicine and environment control 2. Gas sensors classification 3. Requirements to gas sensors 4. Comparative analysis of gas sensors 5. Materials acceptable for gas sensor applications References Part 1. Conventional Gas Sensing Materials Chapter 2: Metal oxides 1. General view 2. Which metal oxides are better for solid state electrochemical gas sensors? 3. Metal oxides with ionic conductivity: Solid electrolytes 3.1. Criterions for metal oxides application in solid electrolyte-based gas sensors 3.2. High temperature oxygen sensors 3.3. Solid electrolyte-based hydrogen sensors 3.4. Other gases 3.5. Limitations of solid electrolytes application in gas sensors 4. Semiconducting metal oxides 4.1. Metal oxides for chemiresistors 4.1.1. Binary metal oxides 4.1.2. Complex and mixed metal oxides 4.1.3. Metal oxide comparison and selection 4.2. Metal oxide p-n homojunction and heterostructures 4.3. High temperature oxygen sensors based on semiconducting metal oxides 5. Metal oxides for room temperature gas sensors 6. Other applications of metal oxides 6.1. Pyroelectric-based gas sensors 6.2. Thermoelectric-based sensors 6.3. Chemochromic materials for hydrogen sensors References Chapter 3: Polymers 1. General view 2. Polymer-based gas sensors 3. Mechanisms of conductivity change in polymer-based gas sensors 4. Ion conducting polymers and their using in electrochemical sensors 3. Limitations of polymer using in gas sensors 4. Choosing a polymer for gas sensor applications References Chapter 4: Thin metal films 1. Thin metal films in gas sensors 2. Disadvantages of sensors and approaches to sensor’s parameters improvement References Chapter 5: Semiconductors in gas sensors 1. Silicon-based gas sensors 2. III-V-based gas sensors 3. Wide-band-gap semiconductors 4. Porous semiconductors (porous silicon) 5. Other semiconductor materials 5.1. Thermoelectric materials 5.2. II-VI semiconductor compounds 5.3. Semiconductor glasses 5.3.1. Chalcogenide glasses 5.3.2. Other glasses 5.4. Tellurium References Chapter 6: Solid electrolytes for detecting specific gases 1. General view on electrochemical gas sensors 2. Ideal solid electrolytes 3. H2 sensors 4. CO2 sensors 5. NOx sensors 6. SOx sensors 7. Cross sensitivity of solid electrolyte-based gas sensors and limitations 8. Oxygen and other sensors based on fluoride ion conductors References Part 2: Auxiliary Materials Chapter 7: Materials for sensor platforms and packaging 1. Conventional platforms 2. Micromachining hotplates 3. Flexible platforms 4. Cantilever-based platforms 4.1. Silicon-based microcantilevers 4.2. Polymer-based microcantilevers 5. Paper-based gas sensors 6. Material requirements for packaging of gas sensors References Chapter 8: Materials for thick film technology References Chapter 9: Electrodes and heaters in MOX-based gas sensors 1. Materials for electrodes in conductometric gas sensors 1.1. Electrode influence on gas sensor response 1.2. Electrode materials preferable for gas sensor applications 2. Electrodes for solid electrolyte-based gas sensors 2.1. The role of electrode configuration in solid electrolyte-based gas sensors 2.2. Sensing electrodes in solid electrolyte-based gas sensors 3. Materials for heater fabrication References Chapter 10: Surface modifiers for metal oxides in conductometric gas sensors 1. General consideration 2. Sensitization mechanisms 3. Bimetallic catalysts 4. Approaches to noble metal cluster forming References Chapter 11: Catalysts used in calorimetric (combustion-type) gas sensors References Chapter 12: Filters in gas sensors 1. Passive filters 2. Catalytically active filters 3. Sorbents for gas preconcentrators References Part 3: Materials for specific gas sensors Chapter 13: Materials for piezoelectric-based gas sensors 1. Piezoelectric materials 2. SAW devices 2.1. Materials for interdigital transducers 3. High

Ghenadii Korotcenkov has more than 40 years experience as a teacher and scientific researcher. He received his Ph.D. in Physics and Technology of Semiconductor Materials and Devices in 1976, and his Habilitate Degree (Dr. Sci.) in Physics and Mathematics of Semiconductors and Dielectrics in 1990. For many years, he led the scientific Gas Sensor Group and managed various national and international scientific and engineering projects carried out in the Laboratory of Micro- and Optoelectronics, Technical University of Moldova. Since 2008, Korotcenkov has been a research Professor in Gwangju Institute of Science and Technology, Republic of Korea.

Korotcenkov’s research results are well-known in the study of Schottky barriers, MOS structures, native oxides, and photoreceivers on the base of III-Vs compounds. His current research interests include material sciences and surface science, focused on metal oxides and solid state gas sensor design.

Korotcenkov is the author or editor of sixteen books and special issues, twelve invited review papers, nineteen book chapters, and more than 190 peer-reviewed articles. He is a holder of 18 patents. Recently, his articles had more than 250 cites per annum. His research activities have been honored by Award of the Supreme Council of Science and Advanced Technology of the Republic of Moldova (2004), The Prize of the Presidents of Ukrainian, Belarus and Moldovan Academies of Sciences (2003), Senior Research Excellence Award of Technical University of Moldova (2001; 2003; 2005), Fellowship from International Research Exchange Board (1998), National Youth Prize of the Republic of Moldova (1980), among others.