Obtaining and Measuring Impedance Characteristics of the Ag8SiSe6 Compound

  • R.М. Sardarly Institute of Radiation Problems, Azerbaijan National Academy of Sciences, Baku, Azerbaijan; Department of Applied and General Physics, National Aviation Academy, Baku, Azerbaijan https://orcid.org/0000-0003-3968-000X
  • М.B. Babanly Named after Academician M. Naghiyev Institute of Catalysis and Inorganic Chemistry, Ministry of Science and Education Republic of Azerbaijan, Baku, Azerbaijan https://orcid.org/0000-0001-5962-3710
  • N.А. Аliyeva Institute of Radiation Problems, Azerbaijan National Academy of Sciences, Baku, Azerbaijan; Azerbaijan University of Architecture and Construction, Baku, Azerbaijan https://orcid.org/0000-0002-8448-0552
  • L.F. Mashadiyeva Department of Applied and General Physics, National Aviation Academy, Baku, Azerbaijan https://orcid.org/0000-0003-2357-6195
  • R.А. Mamadov Institute of Radiation Problems, Azerbaijan National Academy of Sciences, Baku, Azerbaijan https://orcid.org/0000-0003-0368-1326
  • G.M. Ashirov Department of Applied and General Physics, National Aviation Academy, Baku, Azerbaijan https://orcid.org/0000-0003-2786-5824
  • A.A. Saddinova Institute of Physics, Ministry of Science and Education Republic of Azerbaijan, Baku, Azerbaijan https://orcid.org/0009-0005-9967-3575
  • S.Z. Damirova Institute of Physics, Ministry of Science and Education Republic of Azerbaijan, Baku, Azerbaijan https://orcid.org/0009-0008-9536-2894
Keywords: Compound, Ionic conductivity, Complex impedance spectra

Abstract

Samples of the Ag8SiSe6 compound were obtained by direct alloying of initial components and subsequent pressing of powders under a pressure of 0.7 GPa. Temperature dependences of conductivity (σ(T)) and permittivity (ε(T)) of the Ag8SiSe6 compound were studied in constant and alternating electric fields. In a constant field, the electrical conductivity is found to decrease over time (σ(t)). This phenomenon is associated with the process of charge accumulation at the interface of the ion sample and the blocking electrode. Complex impedance spectra were studied in the frequency range of 20–106 Hz.

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References

I. Semkiv, N. Ilchuk, and A. Kashuba, “Photoluminescence of Ag8SnSe6 argyrodite,’ Low Temperature Physics, 48(1), 12 (2022). https://doi.org/10.1063/10.0008957

S. Lin, W. Li, and Y. Pei, “Thermally insulative thermoelectric argyrodites,” Materials Today, 48, 198–213 (2021). https://doi.org/10.1016/j.mattod.2021.01.007

S. Schwarzmüller, D. Souchay, D. Günther, et al., „Argyrodite-type Cu8GeSe6–xTex (0 ≤ x ≤ 2): Temperature-dependent crystal structure and thermoelectric properties,” Zeitschrift für anorganische und allgemeine Chemie, 644(2), 1915–1922 (2018). http://dx.doi.org/10.1002/zaac.201800453

B. Jiang, P. Qiu, E. Eikeland, et al., “Cu8GeSe6-based thermoelectric materials with an argyrodite structure,” Journal of Materials Chemistry C, 5, 943–952 (2017). https://doi.org/10.1039/C6TC05068A

Y. Fan, G. Wang, R. Wang, et al., “Enhanced thermoelectric properties of p-type argyrodites Cu8GeS6 through Cu,” Journal of Alloys and Compounds, 822, 153665 (2020). https://doi.org/10.1016/j.jallcom.2020.153665

M. Yang, G. Shao, B. Wu, et al., “Irregularly shaped bimetallic chalcogenide ag8sns6 nanoparticles as electrocatalysts for hydrogen evolution,” ACS Applied Nano Materials, 4(7), 6745–6751 (2021). https://doi.org/10.1021/acsanm.1c00769

O. Gorochov, “Les composés Ag8MX6 (M = Si, Ge, Sn et X = S, Se, Te),” Bulletin de la Société Chimique de France, 101, 2263 2275 (1968).

I.P. Studenyak, A.I. Pogodin, V.I. Studenyak, et al., “Electrical properties of copper- and silver-containing superionic (Cu1−xAgx)7SiS5I mixed crystals with argyrodite structure,” Solid State Ionics, 345, 115183 (2020). https://doi.org/10.1016/j.ssi.2019.115183

K.S. Weldert, W.G. Zeier, T.W. Day, et al., “Thermoelectric transport in Cu7PSe6 with high copper ionic mobility,” Journal of the American Chemical Society, 136, 12035–12040 (2014). https://doi.org/10.1021/ja5056092

G. Brammertz, B. Vermang, H. El-Anzeery, et al., “Fabrication and characterization of ternary Cu8SiS6 and Cu8SiSe6 thin film layers for optoelectronic applications,” Thin Solid Films, 616, 649–654 (2016). https://doi.org/10.1016/j.tsf.2016.09.049

B.K. Heep, K.S. Weldert, Y. Krysiak, et al., “High electron mobility and disorder induced by silver ion migration lead to good thermoelectric performance in the argyrodite Ag8SiSe6,” Chemistry of Materials, 29(11), 4833–4839 (2017). https://doi.org/10.1021/acs.chemmater.7b00767

T. Bernges, R. Hanus, B. Wankmiller, K. Imasato, et al., “Considering the Role of Ion Transport in Diffuson-Dominated Thermal Conductivity,” Advanced Energy Materials, 12, 2200717 (2022). https://doi.org/10.1002/aenm.202200717

Q. Jiang, S. Li, Y. Luo, et al., “Ecofriendly highly robust Ag8SiSe6-based thermoelectric composites with excellent performance near room temperature,” ACS Applied Materials & Interfaces, 12(49), 54653–54661 (2020). https://doi.org/10.1021/acsami.0c15877

W. Li, S. Lin, B. Ge, et al., “Low sound velocity contributing to the high thermoelectric performance of Ag8SnSe6,” Advanced Science, 3(11), 1600196 (2016). https://doi.org/10.1002/advs.201600196

A. Charoenphakdee, K. Kurosaki, H. Muta, et al., “Ag8SiTe6: A new thermoelectric material with low thermal conductivity,” Japanese Journal of Applied Physics, 48, 011603 (2009). https://doi.org/10.1143/JJAP.48.011603

R.M. Sardarly, G.M. Ashirov, L.F. Mashadiyeva, et al., “Ionic conductivity of the Ag8GeSe6 compound,” Modern Physics Letters B, 36, 2250171 (2023). https://doi.org/10.1142/S0217984922501718

A.M. Hofmann, Silver-Selenium-Silicon, Ternary Alloys, VCH 2, 1988. pp. 559–560.

M. Venkatraman, R. Blachnik, and A. Schlieper, “The phase diagrams of M2X-SiX2 (M is Cu, Ag; X is S, Se),” Thermochimica Acta, 249, 13–20 (1995). https://doi.org/10.1016/0040-6031(95)90666-5

L.V. Piskach, O.V. Parasyuk, I.D. Olekseyuk, et al., “Interaction of argyrodite family compounds with the chalcogenides of II-b elements,” Journal of Alloys and Compounds, 421, 98–104 (2006). https://doi.org/10.1016/j.jallcom.2005.11.056

H. Iyetomi, P. Vashishta, and R.K. Kalia, “Incipient phase separation in Ag/Ge/Se glasses: clustering of Ag atoms,” J. Non-Cryst. Solids, 262, 135-142 (2000). https://doi.org/10.1016/S0022-3093(99)00692-4

R.M. Sardarly, F.T.Salmanov, N.A. Aliyeva, and R. Abbasli, “Impedance Spectroscopy of (TlGaSe2)1-x(TlInSe2)x Solid Solutions In Radio Frequency Range,” Modern Physics Letters B, 34(11), 2050113 (2020). https://doi.org/10.1142/s0217984920501134

M. Jin, S. Lin, W. Li, Z. Chen, R. Li, X. Wang, and Y. Pei, Chem. Mater. 317, 2603-2610 (2019). https://doi.org/10.1021/acs.chemmater.9b00393

R.M. Sardarly, F.T.Salmanov, N.A. Aliyeva, R.N. Mehdiyeva, and S.M. Gakhramanova, “AC conductivity of superionic thallium sulfide crystals exposed to γ-irradiation,” Modern Physics Letters B, 35(33), 2150504 (2021). https://doi.org/10.1142/S0217984921505047

W.L. Roth, R.E. Benenson, and C.J. Wielunski, “Particle scattering studies on foreign ions in superionic conductors,” Solid State Ionics, 9-10, 1459–1464 (1983). https://doi.org/10.1016/0167-2738(83)90195-9

D.P. Almond, A.R. West, and R. Grant, “Anomalous conductivity prefactors in fast ion conductors,” Solud State Ionics, 8, 456–457, (1983). https://doi.org/10.1038/306456a0

A.A. Piarristeguy, M. Ramonda, N. Frolet, M. Ribes, and A. Pradel, “High resolution electrical characterisation of Ag-conducting heterogeneous chalcogenide glasses,” Solid State Ion. 181, 1205-1208 (2010). https://doi.org/10.1016/j.ssi.2010.06.050

L. Li, Y. Liu, and J. Dai, “High thermoelectric performance of superionic argyrodite compound Ag8SnSe6,” J. Mater. Chem. C, 4, 5806-5813 (2016). https://doi.org/10.1039/C6TC00810K

A. West, Solid State Chemistry and its Applications, (John Wiley & Sons, 1984). http://catalysis.eprints.iitm.ac.in/3790/1/seven%20crystal%20systems-1.pdf

Published
2025-03-03
Cited
How to Cite
Sardarly, R., BabanlyМ., АliyevaN., Mashadiyeva, L., Mamadov, R., Ashirov, G., Saddinova, A., & Damirova, S. (2025). Obtaining and Measuring Impedance Characteristics of the Ag8SiSe6 Compound. East European Journal of Physics, (1), 233-239. https://doi.org/10.26565/2312-4334-2025-1-24