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) Crack morphology characterized by SEM for (a) Cu₂Te, (b) Cu₂Se, (c) Cu₂Te_0.8Se_0.2, and (d) Cu₂Te_0.2Se_0.8, respectively.