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.
@article{arxiv.1904.10725,
title = {Novel temperature operated electrooptical materials based on K2ZnCl4: PVA polymer nanocomposites},
author = {A. M. El-Naggar and A. A. Albassam and J. Jedryka and A. Wojciechowski},
journal= {arXiv preprint arXiv:1904.10725},
year = {2019}
}