PREFACE
ABOUT THE EDITOR
CONTRIBUTORS
1 NUMERICAL SIMULATION OF ELECTRICAL RESPONSES TO GASES IN ADVANCED STRUCTURES
A.Setkus
1 Introduction
2 Analytic and Numeric Modeling
2.1 Basic Equations
2.2 Analytical Approaches
2.3 Numerical Simulations
2.4 Verification of Models
3 Resistive Sensors
3.1 Introductory Remarks
3.2 Polycrystalline Films
3.3 Nanostructured Films
3.4 Conductive Polymer Layers
3.5 Molecular Structures
4 Concluding Comments
References
2 Co-ADSORPTION PROCESSES AND QUANTUM MECHANICAL MODELING OF GAS-SENSING EFFECTS
J-J.Velasco Velez
1 Introduction
2 Solid-Gas Interaction
2.1 Adsorption
2.2 Chemisorption
2.3 Electronic Transitions in Chemisorption
2.4 Chemisorption in Equilibrium, "Wolkenstein" Isotherm
2.5 Reaction Time
2.6 Charge Transfer Model (CTM)
3 Co-adsorption
3.1 QuantumModel
3.2 StatisticalModel
3.3 AdsorptionTime
4 Discussion
5 Summary
6 Nomenclature
Dedication
Acknowledgment
References
3 NANOSENSORS: A PLATFORM TO MODEL THE SENSING MECHANISMS IN METAL OXIDES
F.Hemandez-Ramirez
J.D.Prades
A.Cirera
1 Introduction
2 Toward a Better Description of Gas-Sensing Mechanisms in
Metal Oxides: Oxygen Diffusion in Tin Dioxide Nanowires
2.1 Description of Oxygen Sensing Using Diffusion
2.2 Summary
3 Toward a Systematic Understanding of Photo-Activated Gas Sensors
3.1 Experimental Background 1i
3.2 Theoretical Model of the Photo-Activated Response to Oxidizing Gases (NO2)
3.3 Comparison with Experiments
3.4 Other Target Gases
3.5 Summary
4 Conclusions
Acknowledgments
References
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4 SUREACE STATE MODELS FOR CONDUCTANCE RESPONSE OF METAL OXIDE GAS SENSORS DURING THERMAL TRANSIENTS
5 CONDUCTANCE TRANSIENT ANALYSESOF METAL OXIDE GAS SENSORS ON THE EXAMPLE OF SPINEL FERRITE GAS SENSORS