Complex alloying effect on thermoelectric transport properties of Cu2Ge(Se1−xTex)3 Project supported by the National Natural Science Foundation of China (Grant Nos. 51672270, 11674040, and 11404044), the Key Research Program of Frontier Sciences, Chinese Academy of Sciences (Grant No. QYZDB-SSW-SLH016), and the Project for Fundamental and Frontier Research in Chongqing City (Grant No. CSTC2015JCYJBX0026). |
(color online) The temperature-dependent zT values of Cu2Ge(Se1−xTex)3 samples. |