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Dielectric spectroscopy

About: Dielectric spectroscopy is a(n) research topic. Over the lifetime, 39909 publication(s) have been published within this topic receiving 974488 citation(s). more


BookDOI: 10.1002/0471716243
04 Apr 2005-
Abstract: Preface. Preface to the First Edition. Contributors. Contributors to the First Edition. Chapter 1. Fundamentals of Impedance Spectroscopy (J.Ross Macdonald and William B. Johnson). 1.1. Background, Basic Definitions, and History. 1.1.1 The Importance of Interfaces. 1.1.2 The Basic Impedance Spectroscopy Experiment. 1.1.3 Response to a Small-Signal Stimulus in the Frequency Domain. 1.1.4 Impedance-Related Functions. 1.1.5 Early History. 1.2. Advantages and Limitations. 1.2.1 Differences Between Solid State and Aqueous Electrochemistry. 1.3. Elementary Analysis of Impedance Spectra. 1.3.1 Physical Models for Equivalent Circuit Elements. 1.3.2 Simple RC Circuits. 1.3.3 Analysis of Single Impedance Arcs. 1.4. Selected Applications of IS. Chapter 2. Theory (Ian D. Raistrick, Donald R. Franceschetti, and J. Ross Macdonald). 2.1. The Electrical Analogs of Physical and Chemical Processes. 2.1.1 Introduction. 2.1.2 The Electrical Properties of Bulk Homogeneous Phases. Introduction. Dielectric Relaxation in Materials with a Single Time Constant. Distributions of Relaxation Times. Conductivity and Diffusion in Electrolytes. Conductivity and Diffusion-a Statistical Description. Migration in the Absence of Concentration Gradients. Transport in Disordered Media. 2.1.3 Mass and Charge Transport in the Presence of Concentration Gradients. Diffusion. Mixed Electronic-Ionic Conductors. Concentration Polarization. 2.1.4 Interfaces and Boundary Conditions. Reversible and Irreversible Interfaces. Polarizable Electrodes. Adsorption at the Electrode-Electrolyte Interface. Charge Transfer at the Electrode-Electrolyte Interface. 2.1.5 Grain Boundary Effects. 2.1.6 Current Distribution, Porous and Rough Electrodes- the Effect of Geometry. Current Distribution Problems. Rough and Porous Electrodes. 2.2. Physical and Electrochemical Models. 2.2.1 The Modeling of Electrochemical Systems. 2.2.2 Equivalent Circuits. Unification of Immitance Responses. Distributed Circuit Elements. Ambiguous Circuits. 2.2.3 Modeling Results. Introduction. Supported Situations. Unsupported Situations: Theoretical Models. Unsupported Situations: Equivalent Network Models. Unsupported Situations: Empirical and Semiempirical Models. Chapter 3. Measuring Techniques and Data Analysis. 3.1. Impedance Measurement Techniques (Michael C. H. McKubre and Digby D. Macdonald). 3.1.1 Introduction. 3.1.2 Frequency Domain Methods. Audio Frequency Bridges. Transformer Ratio Arm Bridges. Berberian-Cole Bridge. Considerations of Potentiostatic Control. Oscilloscopic Methods for Direct Measurement. Phase-Sensitive Detection for Direct Measurement. Automated Frequency Response Analysis. Automated Impedance Analyzers. The Use of Kramers-Kronig Transforms. Spectrum Analyzers. 3.1.3 Time Domain Methods. Introduction. Analog-to-Digital (A/D) Conversion. Computer Interfacing. Digital Signal Processing. 3.1.4 Conclusions. 3.2. Commercially Available Impedance Measurement Systems (Brian Sayers). 3.2.1 Electrochemical Impedance Measurement Systems. System Configuration. Why Use a Potentiostat? Measurements Using 2, 3 or 4-Terminal Techniques. Measurement Resolution and Accuracy. Single Sine and FFT Measurement Techniques. Multielectrode Techniques. Effects of Connections and Input Impedance. Verification of Measurement Performance. Floating Measurement Techniques. Multichannel Techniques. 3.2.2 Materials Impedance Measurement Systems. System Configuration. Measurement of Low Impedance Materials. Measurement of High Impedance Materials. Reference Techniques. Normalization Techniques. High Voltage Measurement Techniques. Temperature Control. Sample Holder Considerations. 3.3. Data Analysis (J. Ross Macdonald). 3.3.1 Data Presentation and Adjustment. Previous Approaches. Three-Dimensional Perspective Plotting. Treatment of Anomalies. 3.3.2 Data Analysis Methods. Simple Methods. Complex Nonlinear Least Squares. Weighting. Which Impedance-Related Function to Fit? The Question of "What to Fit" Revisited. Deconvolution Approaches. Examples of CNLS Fitting. Summary and Simple Characterization Example. Chapter 4. Applications of Impedance Spectroscopy. 4.1. Characterization of Materials (N. Bonanos, B. C. H. Steele, and E. P. Butler). 4.1.1 Microstructural Models for Impedance Spectra of Materials. Introduction. Layer Models. Effective Medium Models. Modeling of Composite Electrodes. 4.1.2 Experimental Techniques. Introduction. Measurement Systems. Sample Preparation-Electrodes. Problems Associated With the Measurement of Electrode Properties. 4.1.3 Interpretation of the Impedance Spectra of Ionic Conductors and Interfaces. Introduction. Characterization of Grain Boundaries by IS. Characterization of Two-Phase Dispersions by IS. Impedance Spectra of Unusual Two-phase Systems. Impedance Spectra of Composite Electrodes. Closing Remarks. 4.2. Characterization of the Electrical Response of High Resistivity Ionic and Dielectric Solid Materials by Immittance Spectroscopy (J. Ross Macdonald). 4.2.1 Introduction. 4.2.2 Types of Dispersive Response Models: Strengths and Weaknesses. Overview. Variable-slope Models. Composite Models. 4.2.3 Illustration of Typical Data Fitting Results for an Ionic Conductor. 4.3. Solid State Devices (William B. Johnson and Wayne L. Worrell). 4.3.1 Electrolyte-Insulator-Semiconductor (EIS) Sensors. 4.3.2 Solid Electrolyte Chemical Sensors. 4.3.3 Photoelectrochemical Solar Cells. 4.3.4 Impedance Response of Electrochromic Materials and Devices (Gunnar A. Niklasson, Anna Karin Johsson, and Maria Stromme). Introduction. Materials. Experimental Techniques. Experimental Results on Single Materials. Experimental Results on Electrochromic Devices. Conclusions and Outlook. 4.3.5 Time-Resolved Photocurrent Generation (Albert Goossens). Introduction-Semiconductors. Steady-State Photocurrents. Time-of-Flight. Intensity-Modulated Photocurrent Spectroscopy. Final Remarks. 4.4. Corrosion of Materials (Digby D. Macdonald and Michael C. H. McKubre). 4.4.1 Introduction. 4.4.2 Fundamentals. 4.4.3 Measurement of Corrosion Rate. 4.4.4 Harmonic Analysis. 4.4.5 Kramer-Kronig Transforms. 4.4.6 Corrosion Mechanisms. Active Dissolution. Active-Passive Transition. The Passive State. 4.4.7 Point Defect Model of the Passive State (Digby D. Macdonald). Introduction. Point Defect Model. Electrochemical Impedance Spectroscopy. Bilayer Passive Films. 4.4.8 Equivalent Circuit Analysis (Digby D. Macdonald and Michael C. H. McKubre). Coatings. 4.4.9 Other Impedance Techniques. Electrochemical Hydrodynamic Impedance (EHI). Fracture Transfer Function (FTF). Electrochemical Mechanical Impedance. 4.5. Electrochemical Power Sources. 4.5.1 Special Aspects of Impedance Modeling of Power Sources (Evgenij Barsoukov). Intrinsic Relation Between Impedance Properties and Power Sources Performance. Linear Time-Domain Modeling Based on Impedance Models, Laplace Transform. Expressing Model Parameters in Electrical Terms, Limiting Resistances and Capacitances of Distributed Elements. Discretization of Distributed Elements, Augmenting Equivalent Circuits. Nonlinear Time-Domain Modeling of Power Sources Based on Impedance Models. Special Kinds of Impedance Measurement Possible with Power Sources-Passive Load Excitation and Load Interrupt. 4.5.2 Batteries (Evgenij Barsoukov). Generic Approach to Battery Impedance Modeling. Lead Acid Batteries. Nickel Cadmium Batteries. Nickel Metal-hydride Batteries. Li-ion Batteries. 4.5.3 Impedance Behavior of Electrochemical Supercapacitors and Porous Electrodes (Brian E. Conway). Introduction. The Time Factor in Capacitance Charge or Discharge. Nyquist (or Argand) Complex-Plane Plots for Representation of Impedance Behavior. Bode Plots of Impedance Parameters for Capacitors. Hierarchy of Equivalent Circuits and Representation of Electrochemical Capacitor Behavior. Impedance and Voltammetry Behavior of Brush Electrode Models of Porous Electrodes. Impedance Behavior of Supercapacitors Based on Pseudocapacitance. Deviations of Double-layer Capacitance from Ideal Behavior: Representation by a Constant-phase Element (CPE). 4.5.4 Fuel Cells (Norbert Wagner). Introduction. Alkaline Fuel Cells (AFC). Polymer Electrolyte Fuel Cells (PEFC). Solid Oxide Fuel Cells (SOFC). Appendix. Abbreviations and Definitions of Models. References. Index. more

Topics: High impedance (62%), Impedance parameters (61%), Input impedance (59%) more

4,888 Citations

Journal ArticleDOI: 10.1016/S0008-6223(00)00183-4
01 May 2001-Carbon
Abstract: The electrochemical storage of energy in various carbon materials (activated carbons, aerogels, xerogels, nanostructures) used as capacitor electrodes is considered. Different types of capacitors with a pure electrostatic attraction and/or pseudocapacitance effects are presented. Their performance in various electrolytes is studied taking into account the different range of operating voltage (1 V for aqueous and 3 V for aprotic solutions). Trials are undertaken for estimating the role of micro and mesopores during charging the electrical double layer in both kinds of electrolytic solutions for which the electrical conductivity and the size of solvated ions are different. The effect of pseudocapacitance for maximising the total capacitance is especially documented. Carbons chemically modified by a strong oxidation treatment represent a very well defined region of pseudocapacitance properties due to the Faradaic redox reactions of their rich surface functionality. Conducting polymers (polyaniline, polypyrrole, polythiophene derivatives) and oxidised metallic particles (Ru, Mn, Co,…) deposited on the carbons also participate in the enhancement of the final capacity through fast faradaic pseudocapacitance effects. Evaluation of capacitor performance by different techniques, e.g. voltammetry, impedance spectroscopy, charge/discharge characteristics is also discussed. more

Topics: Pseudocapacitance (72%), Polyaniline (54%), Polypyrrole (53%) more

3,809 Citations

01 Jan 2003-
Abstract: A. Schoenhals, F. Kremer: Theory of Dielectric Relaxation.- F. Kremer, A. Schoenhals: Broadband Dielectric Measurement Techniques.- A. Schoenhals, F. Kremer: Analysis of Dielectric Spectra.- F. Kremer, A. Schoenhals: The Scaling of the Dynamics of Glasses and Supercooled Liquids.- P. Lunkenheimer, A. Loidl:Glassy Dynamics Beyond the a-Relaxation.- F. Kremer, A. Huwe, A. Schoenhals, S. Rozanski: Molecular Dynamics in Confining Space.- A. Schoenhals: Molecular Dynamics in Polymer Model Systems.- G. Floudas: Effect of Pressure on the Dielectric Spectra of Polymeric Systems.- J. Mijovich: Dielectric Spectroscopy of Reactive Polymeric Systems.- F. Kremer, A. Schoenhals: Collective and Molecular Dynamics of (Polymeric) Liquid Crystals.- L. Hartmann, K. Fukao, F. Kremer: Molecular Dynamics in thin Polymer Layers.- F. Kremer, S. Rozanski: The Dielectric Poperties of Semiconducting Disordered Solids.- P.A.M. Steeman, J. v. Turnhout: The Dielectric Properties of Inhomogeneous Media.- R. Boehmer, G. Diezemann: Principles and Applications of Pulsed Dielectric Spectroscopy and Nonresonant Dielectric Hole Burning.- R. Richert: Local Dielectric Relaxation by Solvation Dynamics.- T. Pakula: Dielectric and Dynamic Mechanical Spectroscopy-A Comparison.- R. Boehmer, F. Kremer: Dielectric and (Multidimensional) NMR Spectroscopy-A Comparison.- A. Arbe, J. Colmenero, D. Richter: Polymer Dynamics by Dielectric Spectroscopy and Neutron Scattering-A Comparison more

Topics: Dielectric (56%), Dielectric spectroscopy (52%)

2,834 Citations

Open accessBook
01 Aug 1986-
Abstract: Fundamentals of Impedance Spectroscopy Theory Measuring Techniques and Data Analysis Applications of Impedance more

Topics: Dielectric spectroscopy (55%)

2,128 Citations

Journal ArticleDOI: 10.1021/JP052768H
Abstract: Electrochemical impedance spectroscopy (EIS) has been performed to investigate electronic and ionic processes in dye-sensitized solar cells (DSC). A theoretical model has been elaborated, to interpret the frequency response of the device. The high-frequency feature is attributed to the charge transfer at the counter electrode while the response in the intermediate-frequency region is associated with the electron transport in the mesoscopic TiO2 film and the back reaction at the TiO2/electrolyte interface. The low-frequency region reflects the diffusion in the electrolyte. Using an appropriate equivalent circuit, the electron transport rate and electron lifetime in the mesoscopic film have been derived, which agree with the values derived from transient photocurrent and photovoltage measurements. The EIS measurements show that DSC performance variations under prolonged thermal aging result mainly from the decrease in the lifetime of the conduction band electron in the TiO2 film. more

Topics: Dielectric spectroscopy (55%), Dye-sensitized solar cell (53%), Electrolyte (51%) more

1,793 Citations

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Belkheir Hammouti

52 papers, 1.4K citations

T.P. Sinha

49 papers, 1K citations

Abd El-Aziz S. Fouda

43 papers, 413 citations

Abdelkader Zarrouk

41 papers, 683 citations

Kazimierz Darowicki

40 papers, 678 citations

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