Impedance spectroscopy in photovoltaic materials of Cu<sub>2</sub>ZnSnS<sub>4</sub> (CZTS) and use of the KK transform

Patarroyo, M.; Vera, Enrique; Pineda, Yaneth; Gómez, Jairo; Soracá, Gloria Vargas; Sánchez, D

doi:10.1088/1742-6596/786/1/012014

Cited by 10 publications

(7 citation statements)

References 6 publications

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“…The Bode phase diagram represents the phase of the transfer function vs function of the frequency (or angular frequency) in logarithmic scale, allowing evaluating the displacement in phase of a signal at the output of the system with respect to the input for a given frequency. These diagrams exhibit an improved semiconductor behavior than those obtained without calcination, being concordant with preliminary works [6] as shown in figure 9.…”

Section: Impedancesupporting

confidence: 90%

“…The Kramers-Kronig equations, describe the relationship between the real and imaginary parts of complex analytic functions in the complex upper half plane [6,7,9]. Therefore, with these equations it is possible to calculate the real and imaginary parts of the impedance values, using the KK equations that transform the real part of the impedance in the imaginary part and vice-versa [8,37,38].…”

Section: The Kramers-kronig Transform Kkmentioning

confidence: 99%

“…The characterization, obtaining and analysis of CZTiS and CZSnS materials under hydrothermal conditions at specific temperatures, represent a great opportunity to development and tuning of some properties which are opti-mal for photovoltaic applications [4,5]. In this regard, it can be said that the mathematical analysis based on the adjust of an impedance models based on the Kramers-Kronig equations (KK), allow to interpolate and predict some relevant characteristics of materials as the electrical conductivity under different synthesis conditions, which together with statistical methods, validate the success of the model in order to minimize the inaccuracy associated with the data collection [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Mathematical modelling of the conductivity in CZTiS-CZSnS as a function of synthesis temperature

Mesa

Báez

Cerón-Achicanoy

et al. 2021

J. Phys.: Condens. Matter

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The electrical behavior of photovoltaic materials related with Cu2ZnTiS4 and Cu2ZnSnS4 materials were analyzed as function of synthesis temperature in accordance with a new mathematical model based on the Kramers–Kronig equations with a high reliability. The samples were obtained through a hydrothermal route and a subsequent thermal treatment of solids at 550 °C for 1 h under nitrogen flow (50 ml min−1). The characterization was done by x-ray diffraction, ultraviolet spectroscopy (UV), Raman spectroscopy, atomic force microscopy (AFM) and solid state impedance spectroscopy (IS) techniques. The structural characterization, confirm the obtention of a tetragonal material with spatial group I-42m, oriented along (1 1 2) facet, with nanometric crystal sizes (5–6 nm). The AFM and Raman analysis confirm a high level of chemical homogeneity and correlation with the synthesis temperature, associated with the roughness of the samples. The UV spectroscopy confirm a band gap around 1.4–1.5 eV, evidencing the effectiveness of the synthesis process. The IS results at room temperature with a probability of 95%, confirm a high consistency of data with respect to values of real and imaginary impedance, allowing to obtain information of the conductance, reactance and inductance, achieving conductivity values around 10−5 and 10−3 Ω−1 m−1 in comparison with traditional mathematical models used for this purpose.

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Section: Impedancesupporting

confidence: 90%

Section: The Kramers-kronig Transform Kkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mathematical modelling of the conductivity in CZTiS-CZSnS as a function of synthesis temperature

Mesa

Báez

Cerón-Achicanoy

et al. 2021

J. Phys.: Condens. Matter

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“…The resistivity properties of a dielectric material can be determined from the complex impedance spectroscopic analysis. , Figure shows the variations of the real part ( Z ′ = Z cosθ) and imaginary part ( Z ″ = Z sinθ) of complex impedance ( Z *) as a function of frequency at different temperatures, where Z and θ can be attributed to the magnitude of complex impedance and phase factor. The values of Z ′ and Z ″ behave in a similar manner.…”

Section: Resultsmentioning

confidence: 99%

Optical and Dielectric Characterization of Nanoparticle-Based Cu₂Ni_1+xSn_1–xS₄ Nanosphere Synthesized by Facile Solvothermal Method

Sahoo¹,

Senapati²,

Samal

et al. 2023

ACS Appl. Eng. Mater.

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Here, we have reported an excellent optical, dielectric, and electrical behavior of Cu 2 Ni 1+x Sn 1−x S 4 (CNTS) nanospheres synthesized by the facile solvothermal technique. From its structural analysis, the polycrystalline nature of the material was confirmed due to the presence of the sphalerite phase along with several secondary phases, demonstrating the structural tuning possibilities with a compositional variation. Further analysis of the electronic structure showed the presence of Cu +1 , Ni +2 , Sn +4 , and S −2 valence states in the composition. The nanoflower-like morphology made up of nanospheres remained the same even after the compositional variation and enhanced the light-trapping effect. However, the increase in the optical band gap and decrease in the refractive index showed distinctive properties with the Ni concentration variation. The frequency and temperature-dependent behavior of dielectric parameters, conductivity, impedance, and electric modulus parameters broadened the application possibilities along with the optoelectronic properties. The increase in AC conductivity with temperature enabled the hopping of charge carriers, and properties like an increase in the loss factor at a lower frequency and higher temperature made the nanomaterials favorable for devices based on high-power circuits. The decrease in impedance values indicated less current dissipation in lower-frequency regions, and the electric modulus parameter showed non-Debye-type behavior. The tunable optical, dielectric, and electrical properties of the CNTS materials widen the cutting-edge optoelectronic application possibilities.

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“…The analysis by Transmission Electron Microscopy (TEM) was done on a JEOL 2100 equipment provided with a thermionic LaB6 gun with an accelerating voltage of 200kV. The composition of the solids was evaluated by X-ray fluorescence (XRF) on a Bruker S8 Tiger system, while the electrical and conductivity properties of the materials were evaluate using the solid state impedance spectroscopy technique (IS), in a GAMRY potentiostat-galvanostat instrument between 1 and 10MHz [10].…”

Section: Methodsmentioning

confidence: 99%

Chemical obtaining of LiMO₂and LiM₂O₄(M=Co, Mn) oxides, for cathodic applications in Li-ion batteries

Neira-Guio

Cuaspud

López

et al. 2017

J. Phys.: Conf. Ser.

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Abstract. This paper describes the synthesis and characterization of two spinel and olivinetype multicomponent oxides based on LiMO2 and LiM2O4 systems (M=Co and Mn), which represent the current state of the art in the development of cathodes for Li-ion batteries. A simple combustion synthesis process was employed to obtain the nanometric oxides in powder form (crystal sizes around 5-8nm), with a number of improved surface characteristics. The characterization by X-Ray Diffraction (XRD), Scanning and Transmission Electron Microscopy (SEM, TEM) and X-Ray Fluorescence (XRF), allowed to evaluate the morphology and the stoichiometric compositions of solids, obtaining a concordant pure crystalline phase of LiCoO2 and LiMn2O4 oxides identified in a rhombohedral and cubic phase with punctual group R-3m (1 6 6) and Fm-3m (2 2 5) respectively. The electrical characterization of materials developed by impedance spectroscopy solid state, allowed to determine a p-type semiconducting behaviour with conductivity values of 6.2×10 -3 and 2.7×10 -7 S for LiCoO2 and LiMn2O4 systems, consistent with the state of the art for such materials.

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Impedance spectroscopy in photovoltaic materials of Cu₂ZnSnS₄ (CZTS) and use of the KK transform

Cited by 10 publications

References 6 publications

Mathematical modelling of the conductivity in CZTiS-CZSnS as a function of synthesis temperature

Mathematical modelling of the conductivity in CZTiS-CZSnS as a function of synthesis temperature

Optical and Dielectric Characterization of Nanoparticle-Based Cu₂Ni_1+xSn_1–xS₄ Nanosphere Synthesized by Facile Solvothermal Method

Chemical obtaining of LiMO₂and LiM₂O₄(M=Co, Mn) oxides, for cathodic applications in Li-ion batteries

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Impedance spectroscopy in photovoltaic materials of Cu2ZnSnS4 (CZTS) and use of the KK transform

Cited by 10 publications

References 6 publications

Mathematical modelling of the conductivity in CZTiS-CZSnS as a function of synthesis temperature

Mathematical modelling of the conductivity in CZTiS-CZSnS as a function of synthesis temperature

Optical and Dielectric Characterization of Nanoparticle-Based Cu2Ni1+xSn1–xS4 Nanosphere Synthesized by Facile Solvothermal Method

Chemical obtaining of LiMO2and LiM2O4(M=Co, Mn) oxides, for cathodic applications in Li-ion batteries

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Product

Resources

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Impedance spectroscopy in photovoltaic materials of Cu₂ZnSnS₄ (CZTS) and use of the KK transform

Optical and Dielectric Characterization of Nanoparticle-Based Cu₂Ni_1+xSn_1–xS₄ Nanosphere Synthesized by Facile Solvothermal Method

Chemical obtaining of LiMO₂and LiM₂O₄(M=Co, Mn) oxides, for cathodic applications in Li-ion batteries