Figure 1

Diffraction patterns of the sputtered films with increasing [Cu]/[Te] ratio. From (a) to (d) 1.25, 1.5, 1.75 and 2, respectively. The obtained phases were vulcanite (CuTe), rickardite (Cu7Te5) and weissite (Cu2−xTe).

Diffraction patterns of the sputtered films with increasing [Cu]/[Te] ratio. From (a) to (d) 1.25, 1.5, 1.75 and 2, respectively. The obtained phases were vulcanite (CuTe), rickardite (Cu7Te5) and weissite (Cu2−xTe).