Hopping Conduction in AgSbSe2 and (AgSbSe2)0.9(PbTe)0.1

Ragimov, S. S.; Saddinova, A. A.; Alieva, A. I.; Селим-заде, Р. И.

doi:10.1134/s0020168520080130

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…where T 0 = β/g(µ)r 3 k B , g(µ) is the density of localized states near the Fermi level, r is the radius of localized states, k B is the Boltzmann constant, and β depends on the system dimension (β = 21 [18]). Linear Mott plots were obtained in a certain temperature range.…”

Section: Resultsmentioning

confidence: 99%

Thermoelectric Properties of Ag-=SUB=-8-=/SUB=-Ge-=SUB=-1-x-=/SUB=-Mn-=SUB=-x-=/SUB=-Te-=SUB=-6-=/SUB=- Solid Solutions

et al. 2022

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Ag8Ge1-xMnxTe6 solid solutions with different manganese content (x=0, 0.05, 0.1, 0.2) were prepared by alloying and further pressing the powders under a pressure of 0.6 GPa. By the X-ray diffraction studies have shown that the introduction of manganese atoms leads to the compressibility of the Ag8GeTe6 lattice. All p-type samples had high resistance below the transition at temperatures of 180-220 K. An increase in electrical conductivity in the range of 220-300 K was analyzed using the Mott ratio; at temperatures T>320 K, semiconductor behavior is observed in all compositions. The highest thermoelectric figure of merit ZT=0.7 at 550 K was obtained for a solid solution of the composition Ag8Ge1-xMnxTe6 (x=0.05). Keywords: solid solution, Ag8Ge1-xMnxTe6, thermoelectric efficiency, amorphization, low thermal conductivity

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Section: Resultsmentioning

confidence: 99%

Thermoelectric Properties of Ag-=SUB=-8-=/SUB=-Ge-=SUB=-1-x-=/SUB=-Mn-=SUB=-x-=/SUB=-Te-=SUB=-6-=/SUB=- Solid Solutions

et al. 2022

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“…Исследования AgSbSe 2 представляют интерес с точки зрения его термоэлектрических свойств [1,2]. Термоэлектрическая эффективность материала определяется безразмерной величиной ZT = S 2 σ T /k, где S, σ, T, kкоэффициент термоэдс, электропроводность, абсолютная температура и теплопроводность соответственно.…”

Section: Introductionunclassified

О ширине запрещенной зоны AgSbSe-=SUB=-2-=/SUB=-

Рагимов¹,

Багиев²,

Алиева³

et al. 2021

Физика И Техника Полупроводников

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Spectral ellipsometric studies of AgSbSe2 have been carried out, and the spectra of optical constants and permittivity have been determined in the photon energy range of 0.07-6.5 eV. To describe the obtained spectra, the Tauc-Laurents, modified Forouhi-Bloomer and Cody-Laurents models were used. It was found that the Cody-Laurents model better describes the sub-edge region of the spectrum of optical constants. It is shown that the spatial structural disordering of AgSbSe2 crystals has a significant effect on the optical properties, the shape of the absorption edge, and the structure of the band gap. Based on the analysis of the obtained spectra and using various methods, the band gap of AgSbSe2, Еg = 0.32 eV, was determined.

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