Advanced Gas Sensing: The Electroadsorptive Effect and Related Techniques

ISBN-13: 9781402074332 / Angielski / Twarda / 2003 / 202 str.

Theodor Doll

Opis

Advanced Gas Sensing focuses on the Electroadsorptive Effect: its theory, experimental measurement and applications in consumer gas sensors as well as in surface physics laboratory work. The Electroadsorptive Effect is invaluable when used in MEMS gas sensors.
The authors use a general approach that covers new insights into temperature modulation and the use of light. The emphasis is given to electrical fields in gas sensors, which cause the Electroadsorptive Effect. The effect has long been known by experts working in the field, but has been regarded as too difficult for use until recently because of increasing sensor miniaturization.
The book will serve as an introduction to sensitivity tuning of semiconductor gas sensors, introducing the underlying theory and experimental models before moving on to design considerations, applications and market considerations. A literature review and examples of experimental data are included.
This book is one of the first publications on the subject providing a comprehensive introduction and data source as well as an examination of the current and future applications. It will become a valuable reference for scientists and engineers with an interest in materials research, chemical sensors and surface physics.

Spis treści

1. Introduction to the Electroadsorptive Effect and its Applications.- 2. Surface Reactions at Metal Oxides: Relaxation Spectroscopy and Charge Transfer.- 3. Potential-Controlled Gas-Sensor Devices.- 4. A Gas Sensitive Tin Oxide Tin-Film Transistor.- 5. Multielectrode Micromachined Gas Sensors.- 6. Temperature-And Field-Effect-Modulation Techniques for Thin-Film Metal Oxide Gas Sensors.- 7. Markets and Industrialisation of Low Power Gas Sensors Based on Work Function Measurement.- 8. Photoactivation of Semiconductor Gas Sensor Operating at Room Temperature.