Enhanced Visible Light Photodetection Based on the Solution-Processed rGO-Ppy Photodetectors
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Abstract:
In this paper, we present a novel approach to enhancing the visible light photodetection efficiency of reduced graphene oxide (rGO) by incorporating polypyrrole (Ppy) nanoparticles sized between 126 and 1025 nm. The rGO and Ppy nano-particles were synthesized via Hummer’s method and chemical polymerization, respectively. Characterization was performed using SEM, TEM, Raman spectroscopy, and optical measurements. The rGO/Ppy photodetector demonstrated a high photoresponsivity of 15 mA/W and a broad spectral response from 405 nm to 805 nm, indicating improved efficiency and versatility. This study highlights the potential of tailored Ppy nanoparticle sizes in advancing rGO photodetectors for high-performance optoelectronic applications.
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