Recently, dielectric materials with high energy storage
capacity,
low loss, and good temperature stability are highly desired for the
rapidly growing field of power electronics. In the current work, we
have investigated the change in electrical, optical, and dielectric
properties by varying the concentration of compositional elements
Sn and Mn. We have prepared the Sn1–x
Mn
x
S (0.1, 0.3, 0.5, 0.7, and 0.9)
matrix by using the simple single-step hydrothermal method. The samples
show that the reflectance percentage increased with the increase of
the Mn amount in the composition. The samples exhibit narrow band
gap values, which further increase with the Mn content. The band gap
value increases from 0.43 to 0.56 eV. The structural analysis shows
that the prepared samples are polycrystalline in nature, having SnS
and MnS phases. Furthermore, the crystallite sizes increase with an
increase in Mn addition, whereas dislocation density and strain decrease
simultaneously. The refractive index is calculated from optical band
gap values by using the Dimitrov and Sakka equation. The morphological
study reveals the uniformity in size and shape of the prepared composition
throughout the sample. The presence of compositional elements Sn,
Mn, and S is confirmed by EDX analysis. The electrical study reveals
that the sample shows good electrical properties, which increase with
the Mn contents. The dielectric behavior as a function of frequency
and temperature was investigated, and the parameters like dielectric
constant, AC conductivity, impedance spectroscopy, and electric modulus
were deeply analyzed. All the above optical, electrical, and dielectric
properties of the SnMnS matrix have potential use in the field of
electronic and energy storage device applications.
The effect of Se doping in SnS alloys which decreased the transmission and increase in crystallinity of the films with change in morphology. The optical bandgap decreased and there was a simultaneous increase in 3rd order non-linear susceptibility.
The influence of 532 nm laser irradiation for different times on the optical changes of Ag10In15S15Se60 thin films. The irradiation influenced the structural, linear and the nonlinear optical parameters.
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