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Design and synthesis of polyindole- ZnO nano composite for NLO applications

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DOI: 10.1016/j.jics.2022.100827

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Polyindole; NLO; Optical limiting; ZnO nano Particles

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The present paper focuses on the synthesis and characterization of polyindole-ZnO nano composites for third order nonlinear optical applications. Polyindole was synthesized using oxidative polymerization technique and composites were prepared with different ZnO concentrations. The structural morphology of the polymer composite was studied using FESEM, XRD, and UV Visible spectroscopy. The newly prepared thin films showed excellent nonlinear absorption behavior and optical limiting power when exposed to He-Ne laser, making them potential candidates for optical limiting applications.
Present paper mainly focuses on the synthesis, characterization polyindole-ZnO nano composites for third order nonlinear optical applications. Polyindole was synthesized through oxidative polymerization technique and its composites were prepared with different ZnO concentration. Structural morphology of the polymer composite was studied using FESEM, XRD and UV Visible spectroscopic technique. Polymer showed broad absorption with absorption maxima of 395 nm. Newly prepared thin films showed excellent nonlinear absorption with very good optical limiting behaviour when it is exposed to He-Ne laser with maximum optical limiting power of 11 mW along with third-order nonlinear susceptibility chi(3) of 2.72 x 10-3 esu. Hence these polymer composites may be potential candidate for optical limiting applications.

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