Se substitution and micro-nano-scale porosity enhancing thermoelectric Cu<sub>2</sub>Te

Se substitution and micro-nano-scale porosity enhancing thermoelectric Cu₂Te

Shi Xiaoman¹, Wang Guoyu^{2, 3}, Wang Ruifeng^{2, 3}, Zhou Xiaoyuan⁴, Xu Jingtao⁵, Tang Jun^{1, 6, ‡}, Ang Ran^{1, 6, †}

(color online) (a) XRD patterns for Cu₂Te, Cu₂Se, Cu₂Te_0.8Se_0.2, and Cu₂Te_0.2Se_0.8. Temperature dependence of electrical properties for (b) electrical conductivity σ, (c) Seebeck coefficient S, and (d) power factor PF, respectively.