In this paper lightweight and flexible CdS/CdTe thin film solar cells on metallic substrates have been developed using a close spaced sublimation process with a low deposition temperature. The analysis of basic properties of CdS and CdTe thin films was carried out by SEM and XRD characterization techniques. The thin film solar cell devices were characterized by current- voltage and photocurrent techniques. Open circuit voltage (Voc) of 710 mV, short-circuit current density (Jsc) of 20.55 mA/cm2 and conversion efficiency of 9.04% was obtained for the flexible CdTe/CdS thin film solar cell under AM1.5 illumination.© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.