STRUCTURAL, OPTICAL AND ELECTRICAL-PROPERTIES CHARACTERIZATION OF CDSBTE THIN-FILMS GROWN BY RADIOFREQUENCY SPUTTERING

CdSbTe films have been prepared by radiofrequency sputtering of CdTe a nd antimonium. The structural, electrical and optical properties were investigated. The film dark conductivity increased monotonically with increasing antimony content. The films structure was polycrystalline o f zinc-blende type with a preferential orientation along the (111) dir ection for Sb concentration up to around 12%. For larger concentration s (30 less than or equal to Sb less than or equal to 60 at.%) the stru cture is injured, showing amorphous-like diffraction patterns. Grain s ize and band gap of the films decreased with increasing Sb content.