Abstract
CdS-PANI composites are prepared through in situ synthesis of CdS during PANI preparation. The effect of Cd source concentration in the composite is studied. Elemental analysis is done through energy-dispersive X-ray analysis. UV-visible absorption spectra showed λ (abs) at about 460 nm. The band above ∼800 nm is due to conducting phase of polyaniline. The morphological properties are studied through SEM and TEM. Structural analysis is done through X-ray diffraction, which shows increase in crystallinity. UV-vis absorption and photoluminescence spectra show combined effect of parent materials. This is in conformation with I-V characteristics showing nonlinear diode like behavior and in one it shows tunnel diode type nonlinear nature.