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    Immittance Spectroscopy: Applications to Material Systems
    Immittance Spectroscopy: Applications to Material Systems
    Immittance Spectroscopy: Applications to Material Systems
    Ebook773 pages7 hours

    Immittance Spectroscopy: Applications to Material Systems

    By Mohammad A. Alim

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    About this ebook

    This book emphasizes the use of four complex plane formalisms (impedance, admittance, complex capacitance, and modulus) in a simultaneous fashion. The purpose of employing these complex planes for handling semicircular relaxation using a single set of measured impedance data (ac small-signal electrical data) is highly underscored. The current literature demonstrates the importance of template version of impedance plot whereas this book reflects the advantage of using concurrent four complex plane plots for the same data. This approach allows extraction of a meaningful equivalent circuit model attributing to possible interpretations via potential polarizations and operative mechanisms for the investigated material system. Thus, this book supersedes the limitations of the impedance plot, and intends to serve a broader community of scientific and technical professionals better for their solid and liquid systems.

    This book addresses the following highlighted contents for the measured data but not limited to the:-

    (1) Lumped Parameter/Complex Plane Analysis (LP/CPA) in conjunction with the Bode plots;

    (2) Equivalent circuit model (ECM) derived from the LP/CPA;

    (3) Underlying Operative Mechanisms along with the possible interpretations;

    (4) Ideal (Debye) and non-ideal (non-Debye) relaxations; and

    (5) Data-Handling Criteria (DHC) using Complex Nonlinear Least Squares (CNLS) fitting procedures.
    LanguageEnglish
    PublisherWiley
    Release dateDec 12, 2017
    ISBN9781119185406
    Immittance Spectroscopy: Applications to Material Systems

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      Book preview

      Immittance Spectroscopy - Mohammad A. Alim

      Chapter 1

      Introduction to Immittance Spectroscopy

      1.1 Basic Definition and Background

      The definition and background of immittance spectroscopy has always been very important. Using the term spectroscopy emphasizes a broad meaning of handling measured immittance data. The commonly used term impedance spectroscopy or admittance spectroscopy actually belongs to the immittance spectroscopy where the hybrid word immittance presumably coined by H. W. Bode [1] is in use for at least five decades applying to either impedance or admittance. Commercially this hybrid word was in propagation with the General Radio products. In atomic spectroscopy, elements of the Periodic Table are diagnosed by their characteristic frequencies or corresponding wavelengths [2, 3]. Each frequency or wavelength refers to the specific transition of the electrons outside the nucleus. The specific transition of the electrons from one shell to another shell gives rise to frequency and wavelength. This atomic level investigation or understanding provides firm identification of the elements that refer to the spectroscopic approach for the same element. Due to this concept of spectroscopic approach a trace element in a matrix can be determined during the chemical analysis. The detection limit of a trace element can be ascertained by the capability of the diagnostic tools and methods utilized. Therefore, a term or nomenclature bearing spectroscopy indicates an in-depth investigation or evaluation process. It may be noted that for light, the product of frequency and its corresponding wavelength is equal to its speed. The atomic spectroscopic transition from one level to another level of energy is noted in this case to occur at the speed of the

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