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化学传感器：仿真与建模 第2卷 电导型传感器 上 英文影印版PDF|Epub|txt|kindle电子书版本下载
- （摩尔）科瑞特森科韦主编 著
- 出版社： 哈尔滨：哈尔滨工业大学出版社
- ISBN：7560349022
- 出版时间：2015
- 标注页数：260页
- 文件大小：49MB
- 文件页数：278页
- 主题词：
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图书目录
1 NUMERICAL SIMULATION OF ELECTRICAL RESPONSES TO GASES IN ADVANCED STRUCTURES&A.？etkus1
1 Introduction1
2 Analytic and Numeric Modeling3
2.1 Basic Equations3
2.2 Analytical Approaches7
2.3 Numerical Simulations15
2.4 Verification of Models22
3 Resistive Sensors28
3.1 Introductory Remarks28
3.2 Polycrystalline Films29
3.3 Nanostructured Films34
3.4 Conductive Polymer Layers38
3.5 Molecular Structures40
4 Concluding Comments43
References44
2 Co-ADSORPTION PROCESSES AND QUANTUM MECHANICAL MODELING OF GAS-SENSING EFFECTS&J.-J.Velasco-Vélez51
1 Introduction51
2 Solid-Gas Interaction55
2.1 Adsorption55
2.2 Chemisorption57
2.3 Electronic Transitions in Chemisorption65
2.4 Chemisorption in Equilibrium,"Wolkenstein"Isotherm67
2.5 Reaction Time71
2.6 Charge Transfer Model(CTM)73
3 Co-adsorption79
3.1 Quantum Model79
3.2 Statistical Model81
3.3 Adsorption Time83
4 Discussion84
5 Summary90
6 Nomenclature92
Dedication93
Acknowledgment93
References94
3 NANOSENSORS:A PLATFORM TO MODEL THE SENSING MECHANISMS IN METAL OXIDES&F.Hernandez-Ramirez J.D．Prades A.Cirera97
1 Introduction97
2 Toward a Better Description of Gas-Sensing Mechanisms in Metal Oxides:Oxygen Diffusion in Tin Dioxide Nanowires100
2.1 Description of Oxygen Sensing Using Diffusion105
2.2 Summary107
3 Toward a Systematic Understanding of Photo-Activated Gas Sensors108
3.1 Experimental Background109
3.2 Theoretical Model of the Photo-Activated Response to Oxidizing Gases(NO2)112
3.3 Comparison with Experiments116
3.4 Other Target Gases119
3.5 Summary119
4 Conclusions120
Acknowledgments120
References120
4 SURFACE STATE MODELS FOR CONDUCTANCE RESPONSE OF METAL OXIDE GAS SENSORS DURING THERMAL TRANSIENTS &A.Fort M.Mugnaini S.Rocchi V.Vignoli127
1 Introduction127
2 Surface-State-Based Models of Resistive Chemical Sensors129
2.1 Depleted Surface135
2.2 Enhanced Surface141
3 Building a Chemical-Physical Sensor Model:From the Chemistry to the Resistance Variations143
3.1 The Mechanism of Conduction in the Film:Effect of the Film Structure143
3.2 Selection of a Model for Surface Potential Barrier Height as a Function of the Surface Charge:Solution of the Poisson Equation146
3.3 Selection of a Model for the Evolution of the Surface Charge as a Function of the Surface Chemical Reactions151
4 Surface State-Based Models for Chemical Resistive Sensors:Different Assumptions and Points of View155
5 Developing a Treatable Gray Model from the Physical-Chemical Model156
5.1 The Intrinsic Model157
5.2 The Extrinsic Model:Contributions from Oxygen and Reducing Gas159
5.3 Effects of Water Vapor161
6 Conclusions168
Nomenclature169
References170
5 CONDUCTANCE TRANSIENT ANALYSES OF METAL OXIDE GAS SENSORS ON THE EXAMPLE OF SPINEL FERRITE GAS SENSORS&K.Mukherjee S.B.Majumder177
1 Introduction177
2 Salient Features of Gas-Solid Interaction during Gas Sensing178
3 Experimental181
4 Modeling the Conductance Transients during Response and Recovery182
4.1 Derivation of Response and Recovery Conductance Transients Based on Langmuir Adsorption Isotherm184
4.2 Nonlinear Fitting of Response and Recovery Transients187
4.3 Variation of Response and Recovery Time Constants with Sensor Operating Temperature189
4.4 Variation of the Estimated Fitted Parameters with Test Gas Concentration:Addressing the Selectivity Issue193
5 Characteristic Features Observed in Resistance Transients196
5.1 Investigations on Irreversible and Reversible Gas Sensing in Oxide Gas Sensors198
5.2 Periodic Undulation of the Resistance Transients during Response and Recovery211
5.3 Spikelike Features in Resistance Transients218
6 Summary and Conclusions222
7 Appendix223
7.1 Solution of Eq.(5.36)223
7.2 Solution of Eq.(5.42)224
8 Nomenclature226
Acknowledgment228
References228
6 MODEL OF THERMAL TRANSIENT RESPONSE OF SEMICONDUCTOR GAS SENSORS&Akira Fujimoto233
1 Introduction233
2 Improvement in Selectivitv of the Semiconductor Gas Sensor Using Transient Response234
3 Model of Thermal Transient Response of Semiconductor Gas Sensors236
3.1 Transient Response of Semiconductor Gas Sensors236
3.2 Thermal Transient Response of Semiconductor Gas Sensors237
3.3 Physical and Chemical Processes in the Semiconductor Gas Sensor Under Transient Response238
4 Modeling of Gas Sensor Processes239
4.1 Heat Conduction Processes239
4.2 Chemical Reaction Processes242
4.3 Diffusion Processes243
4.4 Sensor Output244
5 Calculation MethOds245
5.1 Heat Conduction245
5.2 Gas Concentrations on the Sensor Surface246
6 Calculated Transient Responses of Gas Sensors247
6.1 Temperature Change on the Sensor Surface247
6.2 Concentration Change of Substance in the Vicinity of the Sensor Surface249
6.3 Comparison to Experimental Results250
7 Application of the Model of Transient Response251
7.1 Transient Responses Under Heating with Various Waveforms251
7.2 Activation Energy Dependence of Transient Response253
8 Conclusions257
References258