Crystal structure refinement of CuxAg1-xInTe2 bulk material determined from X-ray powder diffraction data using the Rietveld method

Thermoelectric performance of Cu1−x−δAgxInTe2 diamond-like materials with a pseudocubic crystal structure

In a tetragonal chalcopyrite solid solution Cu_1−xAg_xInTe₂ (x = 0–0.5), a pseudocubic structure is realized at x ≈ 0.2. The degenerate valence bands influence electrical transport and lattice thermal conductivity. The highest ZT of 1.24 was obtained at x = 0.2 and δ = 0.05.