Electrophysical characteristics of the polyvinylidenefluo-ride–CuS/CdS and polyvinylidenefluoride–Cu2S/CdS composite materials - S. L. Prokopenko; H. M. Hunia; S. M. Makhno; P. P. Horbyk (Nanosystems, nanomaterials, nanotechnologies, 2014)