Electrical and dielectric properties of In2S3 synthesized by solid state reaction

Solid solutions of M2−2xIn2xS3 (M = Bi or Sb) by solventless thermolysis

“…For example, K2Bi8S13 8 and La7Sb9S24 9 show promising thermoelectric properties, Ba2BiInS5 10 and La4InSbS9 11 show particularly strong second harmonic generation in the IR range, whilst KBiCu2S3 presents good photoelectric behaviour and offers potential utility in photovoltaic devices. 12 Indium sulfides are promising semiconductor materials for various optoelectronic and photovoltaic application, [13][14][15] as a result of their interesting electronic properties, including intense absorption of light, photoconductivity, and bandgap energies across the visible and IR spectrum. [16][17][18] For instance, CuInS2 is a commonly utilized absorber material in photovoltaic solar cells, 19 while LiInS2 is an important IR nonlinear optical material.…”

Dielectric Relaxation and Non‐Overlapping Small Polaron Tunneling Model Conduction Studies of Ag2‐xNaxZnP2O7 (x = 0, 1, and 2) Materials

“…For ceramic materials, the decrease in ε′ with frequency can be explained by the contribution of the different origins of polarizability, ionic, electronic, orientation, and interfacial polarization. [ 20,21 ] It was also observed that ε′ increases with an increase in temperature. This can be explained by the fact that thermal agitation simplifies the orientation of the dipoles and tends to increase the orientation polarization value, which leads to an increase in the dielectric constant.…”

“…This can be explained by the fact that thermal agitation simplifies the orientation of the dipoles and tends to increase the orientation polarization value, which leads to an increase in the dielectric constant. [ 21,22 ]…”

“…We observe that conductivity is constant at a low frequency while at a high frequency, it exhibits a big dispersion, which is a characteristic of ω s . Usually, the phenomenon of the dispersion of conductivity is interpreted by the law of Jonscher: [ 18–35 ] where " s " is the power‐law exponent used to determine the interaction between mobile ions with the environment surrounding them. Then, the value of σ dc found by Jonscher's law at different temperatures is of the same order of magnitude as that found by the study of the dielectric permittivity.…”

“…In fact, according to this model, the exponent s and the AC conductivity σ (ω) are given by equation: [ 36 ] where W H is the polaron hopping energy, R ω is the tunneling distance then, N (EF) is the density of defect states, and α −1 is the spatial extension of the polaron ( α = 1 Å −1 ). [ 21 ]…”