Influence of DC and AC current in the SPS sintering process on homogeneity of thermoelectric properties of Cu2S and Cu2Se

Advances in Nanoparticle-Enhanced Thermoelectric Materials from Synthesis to Energy Harvesting: A Review

“…The provided photos provide a comprehensive examination of the atomic structure and morphological discrepancies seen in both the doped and undoped MoS2 samples. 41 Figure 21 illustrates the unique transition of the p-n-p Seebeck coefficient in Ni-doped MoS2, as seen in Figure 7(a). This transition has a significant impact on the behavior of charge carriers and their mobility.…”

“…Increased nickel concentrations have a significant influence on the expansion of the (0 0 2) plane, resulting in the production of secondary phases that may be linked to the presence of nickel sulfide. The assessment of the solubility limit indicates that the formation of the NiS impurity phase occurs beyond a concentration of 7.5 atomic percent of nickel …”

“…The provided photos depict the following: (a, a1) MoS2 without any doping, (b, b1) MoS2 doped with 2.5 atomic percent (at %) of nickel, and (c, c1) MoS2 doped with 10 at % of nickel. The provided photos provide a comprehensive examination of the atomic structure and morphological discrepancies seen in both the doped and undoped MoS2 samples …”

“…Consequently, this approach proves to be more suitable for sintering various super ionic materials. 41 successful integration of Y2O3 into the composites, leading to an enhancement in mechanical hardness and thermal conductivity. However, there was a decrease observed in the power factor and ZT values, indicating the influence of Y2O3 addition on the thermoelectric properties of Cu2Se-based materials.…”

“…The assessment of the solubility limit indicates that the formation of the NiS impurity phase occurs beyond a concentration of 7.5 atomic percent of nickel. 41 Figure 20 displays the results of the scanning electron microscopy (SEM) examination conducted on undoped MoS2 and Ni-doped MoS2, as seen in Figure 20(a0−e1). The SEM images illustrate the presence of lamellar-like layered structures in both samples.…”