Figure 2: Thermoelectric properties of Cu2Se.

(a) Temperature-dependent electrical conductivity, (b) Seebeck coefficient, (c) thermal conductivity and (d) thermoelectric figure of the merit of Cu2Se prepared by SHS–SPS.
(a) Temperature-dependent electrical conductivity, (b) Seebeck coefficient, (c) thermal conductivity and (d) thermoelectric figure of the merit of Cu2Se prepared by SHS–SPS.