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Conductivity study on GeS2-Ga2S3-AgI-Ag chalcohalide glasses
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Image of FIG. 1.
FIG. 1.

Photo of the studied glasses in a shape of discs with the thickness of about 2.5 mm. The black sample is the G6 glass sputtered with platinum electrodes for the ionic conductivity measurement.

Image of FIG. 2.
FIG. 2.

(a) Raman spectra of the G1-G7 samples; (b) Raman spectra of the G4, G8-G10 samples.

Image of FIG. 3.
FIG. 3.

Typical impedance curve with a high-frequency arc and a low-frequency tail of the G4 sample at 298 K.

Image of FIG. 4.
FIG. 4.

Arrhenius plots of the G1-G7 samples. The straight lines correspond to the linear fits of the data.

Image of FIG. 5.
FIG. 5.

The conductivity vs Ag content at different temperatures.

Image of FIG. 6.
FIG. 6.

The real part of permittivity ε′ vs. frequency presented in the log-log scale for the G1-G7 samples. The inset represents an example of d log ε′/d(log ) dependence on frequency for the G5 sample.


Generic image for table
Table I.

Compositions of the glass samples, the nominal, and real Ag atomic percentage.

Generic image for table
Table II.

Compositional dependence of the ionic conductivity at ambient temperature, the activation energy and the pre-exponential factor obtained from the Arrhenius equation.

Generic image for table
Table III.

The parameters () and () obtained by fitting for the G1-G7 samples at different temperatures.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Conductivity study on GeS2-Ga2S3-AgI-Ag chalcohalide glasses