About: Dielectric spectroscopy is a(n) research topic. Over the lifetime, 39909 publication(s) have been published within this topic receiving 974488 citation(s).
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. 184.108.40.206 Introduction. 220.127.116.11 Dielectric Relaxation in Materials with a Single Time Constant. 18.104.22.168 Distributions of Relaxation Times. 22.214.171.124 Conductivity and Diffusion in Electrolytes. 126.96.36.199 Conductivity and Diffusion-a Statistical Description. 188.8.131.52 Migration in the Absence of Concentration Gradients. 184.108.40.206 Transport in Disordered Media. 2.1.3 Mass and Charge Transport in the Presence of Concentration Gradients. 220.127.116.11 Diffusion. 18.104.22.168 Mixed Electronic-Ionic Conductors. 22.214.171.124 Concentration Polarization. 2.1.4 Interfaces and Boundary Conditions. 126.96.36.199 Reversible and Irreversible Interfaces. 188.8.131.52 Polarizable Electrodes. 184.108.40.206 Adsorption at the Electrode-Electrolyte Interface. 220.127.116.11 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. 18.104.22.168 Current Distribution Problems. 22.214.171.124 Rough and Porous Electrodes. 2.2. Physical and Electrochemical Models. 2.2.1 The Modeling of Electrochemical Systems. 2.2.2 Equivalent Circuits. 126.96.36.199 Unification of Immitance Responses. 188.8.131.52 Distributed Circuit Elements. 184.108.40.206 Ambiguous Circuits. 2.2.3 Modeling Results. 220.127.116.11 Introduction. 18.104.22.168 Supported Situations. 22.214.171.124 Unsupported Situations: Theoretical Models. 126.96.36.199 Unsupported Situations: Equivalent Network Models. 188.8.131.52 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. 184.108.40.206 Audio Frequency Bridges. 220.127.116.11 Transformer Ratio Arm Bridges. 18.104.22.168 Berberian-Cole Bridge. 22.214.171.124 Considerations of Potentiostatic Control. 126.96.36.199 Oscilloscopic Methods for Direct Measurement. 188.8.131.52 Phase-Sensitive Detection for Direct Measurement. 184.108.40.206 Automated Frequency Response Analysis. 220.127.116.11 Automated Impedance Analyzers. 18.104.22.168 The Use of Kramers-Kronig Transforms. 22.214.171.124 Spectrum Analyzers. 3.1.3 Time Domain Methods. 126.96.36.199 Introduction. 188.8.131.52 Analog-to-Digital (A/D) Conversion. 184.108.40.206 Computer Interfacing. 220.127.116.11 Digital Signal Processing. 3.1.4 Conclusions. 3.2. Commercially Available Impedance Measurement Systems (Brian Sayers). 3.2.1 Electrochemical Impedance Measurement Systems. 18.104.22.168 System Configuration. 22.214.171.124 Why Use a Potentiostat? 126.96.36.199 Measurements Using 2, 3 or 4-Terminal Techniques. 188.8.131.52 Measurement Resolution and Accuracy. 184.108.40.206 Single Sine and FFT Measurement Techniques. 220.127.116.11 Multielectrode Techniques. 18.104.22.168 Effects of Connections and Input Impedance. 22.214.171.124 Verification of Measurement Performance. 126.96.36.199 Floating Measurement Techniques. 188.8.131.52 Multichannel Techniques. 3.2.2 Materials Impedance Measurement Systems. 184.108.40.206 System Configuration. 220.127.116.11 Measurement of Low Impedance Materials. 18.104.22.168 Measurement of High Impedance Materials. 22.214.171.124 Reference Techniques. 126.96.36.199 Normalization Techniques. 188.8.131.52 High Voltage Measurement Techniques. 184.108.40.206 Temperature Control. 220.127.116.11 Sample Holder Considerations. 3.3. Data Analysis (J. Ross Macdonald). 3.3.1 Data Presentation and Adjustment. 18.104.22.168 Previous Approaches. 22.214.171.124 Three-Dimensional Perspective Plotting. 126.96.36.199 Treatment of Anomalies. 3.3.2 Data Analysis Methods. 188.8.131.52 Simple Methods. 184.108.40.206 Complex Nonlinear Least Squares. 220.127.116.11 Weighting. 18.104.22.168 Which Impedance-Related Function to Fit? 22.214.171.124 The Question of "What to Fit" Revisited. 126.96.36.199 Deconvolution Approaches. 188.8.131.52 Examples of CNLS Fitting. 184.108.40.206 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. 220.127.116.11 Introduction. 18.104.22.168 Layer Models. 22.214.171.124 Effective Medium Models. 126.96.36.199 Modeling of Composite Electrodes. 4.1.2 Experimental Techniques. 188.8.131.52 Introduction. 184.108.40.206 Measurement Systems. 220.127.116.11 Sample Preparation-Electrodes. 18.104.22.168 Problems Associated With the Measurement of Electrode Properties. 4.1.3 Interpretation of the Impedance Spectra of Ionic Conductors and Interfaces. 22.214.171.124 Introduction. 126.96.36.199 Characterization of Grain Boundaries by IS. 188.8.131.52 Characterization of Two-Phase Dispersions by IS. 184.108.40.206 Impedance Spectra of Unusual Two-phase Systems. 220.127.116.11 Impedance Spectra of Composite Electrodes. 18.104.22.168 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. 22.214.171.124 Overview. 126.96.36.199 Variable-slope Models. 188.8.131.52 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). 184.108.40.206 Introduction. 220.127.116.11 Materials. 18.104.22.168 Experimental Techniques. 22.214.171.124 Experimental Results on Single Materials. 126.96.36.199 Experimental Results on Electrochromic Devices. 188.8.131.52 Conclusions and Outlook. 4.3.5 Time-Resolved Photocurrent Generation (Albert Goossens). 184.108.40.206 Introduction-Semiconductors. 220.127.116.11 Steady-State Photocurrents. 18.104.22.168 Time-of-Flight. 22.214.171.124 Intensity-Modulated Photocurrent Spectroscopy. 126.96.36.199 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. 188.8.131.52 Active Dissolution. 184.108.40.206 Active-Passive Transition. 220.127.116.11 The Passive State. 4.4.7 Point Defect Model of the Passive State (Digby D. Macdonald). 18.104.22.168 Introduction. 22.214.171.124 Point Defect Model. 126.96.36.199 Electrochemical Impedance Spectroscopy. 188.8.131.52 Bilayer Passive Films. 4.4.8 Equivalent Circuit Analysis (Digby D. Macdonald and Michael C. H. McKubre). 184.108.40.206 Coatings. 4.4.9 Other Impedance Techniques. 220.127.116.11 Electrochemical Hydrodynamic Impedance (EHI). 18.104.22.168 Fracture Transfer Function (FTF). 22.214.171.124 Electrochemical Mechanical Impedance. 4.5. Electrochemical Power Sources. 4.5.1 Special Aspects of Impedance Modeling of Power Sources (Evgenij Barsoukov). 126.96.36.199 Intrinsic Relation Between Impedance Properties and Power Sources Performance. 188.8.131.52 Linear Time-Domain Modeling Based on Impedance Models, Laplace Transform. 184.108.40.206 Expressing Model Parameters in Electrical Terms, Limiting Resistances and Capacitances of Distributed Elements. 220.127.116.11 Discretization of Distributed Elements, Augmenting Equivalent Circuits. 18.104.22.168 Nonlinear Time-Domain Modeling of Power Sources Based on Impedance Models. 22.214.171.124 Special Kinds of Impedance Measurement Possible with Power Sources-Passive Load Excitation and Load Interrupt. 4.5.2 Batteries (Evgenij Barsoukov). 126.96.36.199 Generic Approach to Battery Impedance Modeling. 188.8.131.52 Lead Acid Batteries. 184.108.40.206 Nickel Cadmium Batteries. 220.127.116.11 Nickel Metal-hydride Batteries. 18.104.22.168 Li-ion Batteries. 4.5.3 Impedance Behavior of Electrochemical Supercapacitors and Porous Electrodes (Brian E. Conway). 22.214.171.124 Introduction. 126.96.36.199 The Time Factor in Capacitance Charge or Discharge. 188.8.131.52 Nyquist (or Argand) Complex-Plane Plots for Representation of Impedance Behavior. 184.108.40.206 Bode Plots of Impedance Parameters for Capacitors. 220.127.116.11 Hierarchy of Equivalent Circuits and Representation of Electrochemical Capacitor Behavior. 18.104.22.168 Impedance and Voltammetry Behavior of Brush Electrode Models of Porous Electrodes. 22.214.171.124 Impedance Behavior of Supercapacitors Based on Pseudocapacitance. 126.96.36.199 Deviations of Double-layer Capacitance from Ideal Behavior: Representation by a Constant-phase Element (CPE). 4.5.4 Fuel Cells (Norbert Wagner). 188.8.131.52 Introduction. 184.108.40.206 Alkaline Fuel Cells (AFC). 220.127.116.11 Polymer Electrolyte Fuel Cells (PEFC). 18.104.22.168 Solid Oxide Fuel Cells (SOFC). Appendix. Abbreviations and Definitions of Models. References. Index.
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.
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
01 Aug 1986-
Abstract: Fundamentals of Impedance Spectroscopy Theory Measuring Techniques and Data Analysis Applications of Impedance
Topics: Dielectric spectroscopy (55%)
20 Jul 2005-Journal of Physical Chemistry B
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.
Topics: Dielectric spectroscopy (55%), Dye-sensitized solar cell (53%), Electrolyte (51%) ...read more