Photoresponse Characteristics of Ppy/Ag2O Nanocomposites Synthesized by Hydrothermal Method

Abstract

Polypyrrole (Ppy) and Ppy/silver oxide (Ag₂O) nanoparticles (NPs) have been synthesized utilizing hydrothermal method. Then, the pure Ppy and its nanocomposites films with various volume percentages of Ag₂O (10, 30 and 50 vol.%) films were deposited successfully using drop-coat method on glass and Si substrate. The morphology, structural and optical properties of the as-prepared films were measured and characterized utilizing FE-SEM/EDX, XRD, FTIR, and UV. further, these Ppy/Ag₂O nanocomposites were tested to study their influence of Photoresponse properties The photo-detector fabricated employing the Ppy/ Ag₂O-50% showed a good photo-sensitivity of 265.45% and a high responsivity of 243.33 mA/W under the light (532 nm) illumination at bias voltage 5 volt with the rise/decay times of 0.81 sec and 0.85 sec, respectively. The obtained results are proposing that the Ppy/ Ag₂O nanocomposite is a promising material for optoelectronic applications.