The aim of this work is to investigate the degradation perovskite solar cells (PSCs) by means impedance spectroscopy, a highly sensitive characterization technique used establish electrical response device in nondestructive manner. In paper, PSCs with two different electron transport layers (ETLs) are studied: undoped SnO2 as an ETL compared composed graphene-doped (G-SnO2). Experimental data w...

This study used impedance spectroscopy measurements to extract the electrical properties of phytoplankton cells in suspension. Experimental were acquired, and single-shell model was applied specific membrane capacitance, cytoplasm permittivity, conductivity assumingly spherical suspension utilizing Maxwell’s mixture theory a controlled volume fraction cells. The suspensions algae measured at di...

cupric oxide nanostructures were synthesized via a simple reaction between copper nitrate and sodium hydroxide using a sonochemical-assisted method. the synthesized cuo was then characterized using x-ray diffraction, scanning electron microscopy, transmission electron microscopy, fourier transform infrared, ultraviolet-visible and photoluminescence spectroscopy. our studies show that the cuo na...

ABSTRACT This paper reports on an improved method for characterizing single cells within a microfluidic channel, which combines the output of a Dynamic Vision Sensor camera with data from a differential impedance spectroscopy measurement. The combination of optical and impedance data allows the size, shape and position of the cells to be determined in addition to their dielectric properties. He...

Electrical impedance spectroscopy, in conjunction with the metal-organic framework (MOF) UiO-66-NH2, is used to detect trace levels of the explosive simulant 2,6-dinitrotoluene. The combination of porosity and functionality of the MOF provides an effective dielectric structure, resulting in changes of impedance magnitude and phase angle. The promising data indicate that MOFs may be used in low-...

We present a proposal and proof-of-concept, experimental results for a new type of electrical impedance tomography / spectroscopy system that makes use of code division multiplexing to achieve two important technological advances. Assigning each channel an orthogonal code allow all the impedance measurements to be made simultaneously in time, thereby increasing the frame rate; and the use of ps...

This review paper gives basic knowledge about the Electrochemical Impedance Spectroscopy. The main working hypotheses for its correct performance are discussed. A detailed presentation of the structural modelling is made. A brief introduction of the basic elements and electrochemical models is done. The different steps of the impedance data analysis: data preprocessing, parametric identificatio...