Abstract
The integration of semi-conductive materials into the polypyrrole (PPy) matrix tends to be an effective way to improve PPy's properties. Herein we report the laboratory synthesis of rGO-PPy-ZnS (rPZ) nanocomposites through in-situ oxidative polymerization processes. The structural and morphological verification of nanocomposites was carried out by XRD, FESEM and TEM. At the dominant wavelength, the Photoluminescence spectra display cyan color with a high rate of e−-h+ recombination. The decrease in band gap (1.48 eV) and refractive index (2.52) of rPZ showing surface conductivity. The CCT and Duv value shows the light level above the black body curve and the color purity is 55.5%. The current density has increased by 115%, indicating an increase in conductivity. The decrease in the optical band gap, and improved conductivity with increased recombination frequency verified that the as-prepared rGO-PPy-ZnS (rPZ) nanocomposite can be used in OLED devices as an emissive layer.
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