Solvo-displacement route to ternary compounds Ag–M–S (M=Ga, Cu or Hg)

Abstract Ternary compounds AgGaS 2 , Cu 0.8 Ag 1.2 S and Ag 2 HgS 2 were prepared at 200 °C via a solvo-displacement route. The products were characterized with X-ray powder diffraction patterns, X-ray photoelectron spectra and transmission electron microscope images. A possible formation mechanism of solvo-displacement reaction was proposed.