Abstract
Samples of the ternary alloy a-(C-Si-Ge): H have been studied by transmittance, reflectance, photoacoustic and infrared absorption measurements, before and after annealing at 250°C. Recently acquired data on the structure, on the Urbach tail and on the density-of-states distribution are presented. The results provide useful information about the influence of carbon on these alloys and the effects of annealing.