Fundamental and progress of Bi2Te3-based thermoelectric materials<xref rid="cpb_27_4_048403fn1" ref-type="fn">*</xref> <fn id="cpb_27_4_048403fn1"> <label>*</label> Project supported by the Australian Research Council. Zhi-Gang Chen thanks the USQ start-up grant and strategic research grant. </fn>

Fundamental and progress of Bi₂Te₃-based thermoelectric materials* *

Project supported by the Australian Research Council. Zhi-Gang Chen thanks the USQ start-up grant and strategic research grant.

Hong Min^{1, 2}, Chen Zhi-Gang^{1, 2, †}, Zou Jin^{2, 3, ‡}

(color online) (a) Data points of n_H dependent S²σ compared with the theoretical curves of S²σ versus n_H calculated with correspondingly determined E_def, and md∗ . (b) Determined data points of n_H-dependent md∗ with the grey curve indicating the md∗ as a function of nHopt . (c) Data points of λE_def-dependent S²σ compared with the theoretical curves of S²σ versus λE_def for compositions of Bi₂Te₃ (labeled with 1^#), Bi₂Te_2.4Se_0.6 (labeled with 2^#) and Bi₂Se₃ (labeled with 3^#) calculated with the corresponding η^opt. (d) Determined data points of λE_def versus η. In all figures, the solid green data points are from Bi₂Te_3−xSe_x ingots doped with I (wt 0.08%),^[123] the hollow red data points are from Bi₂Te_3−xSe_x processed by BM+HP+HD,^[100] and the hollow blue data points are from Bi₂Te_3−xSe_x single crystals.^[121]