Results 1 to 10 of about 207,966 (250)

Simple circuit equivalents for the constant phase element. [PDF]

open access: yesPLoS ONE, 2021
The constant phase element (CPE) is a capacitive element with a frequency-independent negative phase between current and voltage which interpolates between a capacitor and a resistor.
Sverre Holm   +2 more
doaj   +7 more sources

Programmable constant phase element realization with crossbar arrays [PDF]

open access: yesJournal of Advanced Research, 2021
Introduction: Constant Phase Elements (CPEs) have been widely used in many applications due to the extra degree of freedom, which offers new responses and behaviors.
M.E. Fouda   +4 more
doaj   +5 more sources

Unique Constant Phase Element Behavior of the Electrolyte–Graphene Interface [PDF]

open access: yesNanomaterials, 2019
We report a unique constant phase element (CPE) behavior ( 1 Z = Q 0 ( j ω ) α ) of the electrolyte−graphene interface with both Q 0 and α showing dependence on the gate voltage.
Jianbo Sun, Yuxin Liu
doaj   +5 more sources

Constant Phase Element in the Time Domain: The Problem of Initialization [PDF]

open access: yesEnergies, 2022
The constant phase element (CPE) is found in most battery and supercapacitor equivalent circuit models proposed to interpret data in the frequency domain.
Juan Antonio López-Villanueva   +1 more
doaj   +5 more sources

Revealing the role of the constant phase element in relaxor ferroelectrics [PDF]

open access: yesCommunications Physics, 2022
Relaxor ferroelectrics are a type of material exhibiting electrostriction whereby a change in the material shape occurs under an applied electric field; however, although known by the community for many years the underlying mechanisms of the phenomenon ...
Xavier Vendrell   +3 more
doaj   +6 more sources

Fractional-Order Chaotic Memory with Wideband Constant Phase Elements [PDF]

open access: yesEntropy, 2020
This paper provides readers with three partial results that are mutually connected. Firstly, the gallery of the so-called constant phase elements (CPE) dedicated for the wideband applications is presented.
Jiri Petrzela
doaj   +4 more sources

On the use of a constant phase element (CPE) in electrochemistry

open access: yesCurrent Opinion in Electrochemistry, 2022
Several techniques can be used to experimentally determine the interfacial capacitance of an electrode, which is a crucial parameter used for quantifying the efficiency of supercapacitors. However, the values obtained from cyclic voltammetry can be significantly different from those extracted from electrochemical impedance spectroscopy analysis.
Vincent Vivier, Hercilio G de Melo
exaly   +3 more sources

A High-Precision Circuit-Simulator-Compatible Model for Constant Phase Element Using Rational Function Approximation

open access: yesIEEE Journal of the Electron Devices Society, 2023
Constant phase elements (CPEs) are commonly used in bioelectronic systems, to model the impedance of bioelectrodes and electrode-electrolyte interfaces.
Yangkun Hou   +3 more
doaj   +1 more source

Difference between Charge–Voltage Relations of Ordinary and Fractional Capacitors

open access: yesFractal and Fractional, 2023
In an ordinary time-varying capacitor, there is debate on whether a time-domain multiplication or a time-domain convolution of capacitance and voltage determines charge.
Eirik Brenner Marthins, Sverre Holm
doaj   +1 more source

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