Complex alloying effect on thermoelectric transport properties of Cu2Ge(Se1−xTex)3<xref rid="cpb_27_6_067201_fn1" ref-type="fn">*</xref><fn id="cpb_27_6_067201_fn1"><label>*</label>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).</fn>

Complex alloying effect on thermoelectric transport properties of Cu₂Ge(Se_1−xTe_x)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).

Wang Ruifeng^{1, 3}, Dai Lu^{1, 3}, Yan Yanci^{1, 2}, Peng Kunling^{1, 2}, Lu Xu², Zhou Xiaoyuan², Wang Guoyu^{1, 3, †}

(color online) (a) XRD patterns of Cu₂Ge(Se_1−xTe_x)₃ samples. The standard orthorhombic (PDF#85-1699) Cu₂GeSe₃ XRD patterns are also listed for comparison and the inset shows the enlargement of the patterns in the range of 50° ≤ 2θ ≤ 60°; (b) Alloying dependence of lattice parameters a, b, c, and the ratio of 2c/a.