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arXiv · 1904.10725

Novel temperature operated electrooptical materials based on K2ZnCl4: PVA polymer nanocomposites

A. M. El-Naggar·A. A. Albassam·J. Jedryka·A. Wojciechowski
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Abstract

We have discovered significant temperature anomalies of the linear electrooptical (EOE) coefficients for the K2ZnCl4 nanocrystallites embedded into the polymer matrices. The EOE efficiency was operated by external dc-electric field and UV polarized laser light. The maximal enhancement of EOE output was achieved within the temperature range 375 K-420 K. This temperature range corresponds to existence of incommensurate structural modulation. The maximally achieved field induced EOE efficiency was equal to about 1.4 pm/V for off-diagonal EOE tensor component. The size and NC content dependences have been explored for the size range (20 nm-1500 nm) and contents varying within the 25%-35%. For the sizes about 1200 nm, the EOE is commensurable with the EOE of the bulk crystals and is equal to about 0.6 pm/V.

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A. M. El-Naggar, A. A. Albassam, J. Jedryka, A. Wojciechowski. 2019-04-24. Novel temperature operated electrooptical materials based on K2ZnCl4: PVA polymer nanocomposites. https://doi.org/10.1016/j.matlet.2018.05.116

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