Effect of Gamma Irradiation on the Electrical Properties of Extruded Bi0.85Sb0.15 Solid Solution Samples Doped with Pb Acceptor Impurities

Tağıyev M., Abdullayeva I., Abdinova G.

Inorganic Materials, vol.60, no.7, pp.822-827, 2024 (SCI-Expanded) identifier

  • Nəşrin Növü: Article / Article
  • Cild: 60 Say: 7
  • Nəşr tarixi: 2024
  • Doi nömrəsi: 10.1134/s0020168524701024
  • jurnalın adı: Inorganic Materials
  • Jurnalın baxıldığı indekslər: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Səhifə sayı: pp.822-827
  • Açar sözlər: electrical conductivity, extrusion, gamma irradiation, solid solution, thermoelectric material
  • Adres: Bəli

Qısa məlumat

Abstract—: The effect of gamma irradiation on the electrical properties of extruded Bi0.85Sb0.15 solid solution samples doped with 0.001 to 0.05 at % Pb has been studied in the range ~77–300 K. The results suggest that irradiation of the undoped material to a gamma dose of ~1 Mrad produces donor defects and leads to an increase in carrier concentration n and electrical conductivity σ. The radiation-induced donor defects in the material containing 0.001 at % Pb compensate Pb acceptor centers, reducing σ. In the materials containing ≥0.005 at % Pb, conduction electrons are compensated by Pb acceptor centers, so electrons generated by gamma irradiation lead to an increase in σ. A good correlation is observed between the dependences of electrical conductivity σ, thermoelectric power α and Hall coefficient RH on Pb content and gamma irradiation dose.