Figure 5 | Scientific Reports

Figure 5

From: Enhanced thermoelectric performance of a chalcopyrite compound CuIn3Se5−xTex (x = 0~0.5) through crystal structure engineering

Figure 5

(a) Eg value, roughly estimated using Eg = 2αmaxeT, against x value, which increases with x value increasing until at x = 0.1. At x ≈ 0.15 Eg ≈ 0.90 eV. The Eg values from Ariswan37 and Marín et al.24 are presented for comparison.; (b) The relatively effective mass (m*/me) as a function of Te content. At x = 0.1 the highest m*/me value is obtained; (c) The quality factor B at RT, defined by B = μH(m*/me)3/2T5/2/κL, as a function of x value. The B value increases until at x = 0.1, and then decreases with x increasing.

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