Malik, K. ; Das, Diptasikha ; Bandyopadhyay, S. ; Mandal, P. ; Deb, A. K. ; Srihari, Velaga ; Banerjee, Aritra (2013) Temperature-dependent structural property and power factor of n type thermoelectric Bi0.90Sb0.10 and Bi0.86Sb0.14 alloys Applied Physics Letters, 103 (24). p. 242108. ISSN 0003-6951
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Official URL: http://doi.org/10.1063/1.4844635
Related URL: http://dx.doi.org/10.1063/1.4844635
Abstract
Thermal variation of structural property, linear thermal expansion coefficient (α), resistivity (ρ), thermopower (S), and power factor (PF) of polycrystalline Bi1-xSbx (x = 0.10 and 0.14) samples are reported. Temperature-dependent powder diffraction experiments indicate that samples do not undergo any structural phase transition. Rietveld refinement technique has been used to perform detailed structural analysis. Temperature dependence of α is found to be stronger for Bi0.90Sb0.10. Also, PF for direct band gap Bi0.90Sb0.10 is higher as compared to that for indirect band gap Bi0.86Sb0.14. Role of electron-electron and electron-phonon scattering on ρ, S, and PF has been discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| ID Code: | 122824 |
| Deposited On: | 17 Aug 2021 05:20 |
| Last Modified: | 17 Aug 2021 05:20 |
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