Nanocomposite of PVDF nanofibers embedded with PCBS for optical sensing applications

I. Kandas, E. Samir, N. Ibrahim, R. Ibrahim, M. Mohammed, N. Shehata
Kuwait College of Science & Technology (KCST),

Keywords: PCBS nanomaterial, optical quenching, Stern-Volmer constant, tiny particles, sensing


In this paper, nonlinear nanomaterial such as poly {1-[p-(3’-carboxy-4’-hydroxyphenylazo) benzenesulfonamido]-1, 2-ethandiyl} (PCBS) is studied as optical probe for tiny particles using optical quenching technique. A new electrospun nanocomposite of Polyvinylidene fluoride (PVDF) nanofibers with embedded nonlinear optical nanostructure of PCBS is studied. Under IR excitation, the detected intensity at half of excitation wavelength (due to nonlinear effect of PCBS) is found to be reduced with increasing the concentration of the studied tiny particles in an aqueous solution. In addition, Stern-Volmer constant, which is considered as an indication for the sensitivity to quenchers, has been calculated for the used PCBS nanomaterial. This work could be further helpful as sensitive optical sensors in both biomedical and environmental applications.