科研之友
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摘要
Until now, the studies of antiferroelectric and pyroelectric property were focused on inorganic materials and some antiferroelectric liquid crystals. In this work, we reported an organic compound: (S)-(+)-4-{[(1-methylheptyl)oxy]carbonyl}phenyl-4-(hexyloxy)benzoate, that was discovered to exhibit antiferroelectric-like and large pyroelectric behaviors near the phase transitions. Its electrical properties were investigated by dielectric, pyroelectric, and PE hysteresis loop spectra. The maximum value obtained for the pyroelectric coefficient p was 384 nC cm(-2) k(-1). The material is promising in the field of thermal-electrical switch or pyroelctric detection.
