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. 2021 Mar 22;14(6):1564. doi: 10.3390/ma14061564

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Temperature-dependent Seebeck coefficient S(T) of the parent compound (x = 0.0) with the mixed, ionization, and acoustic scattering mechanism (lines) (Inset is for the Pa-direction) (a) and for the Bi₂Te_2.85Se_0.15I_x (x = 0.1, 0.3, 0.5 mol.%) compounds; (b) Seebeck coefficient S as a function of Hall carrier concentration n_H for various effective masses and scattering exponents; (c) The carrier mean free path λ (left axis, black squares) and the Fermi energy E_F (right axis, red circles) (d) as a function of I-doping concentration at 300 K for the Pe-direction (closed symbol, solid line) and Pa-direction (open symbol, dashed line).