光致电场中铁电向列相的重新取向
Realignment of ferroelectric nematic by photoinduced electric field
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中文总结 AI 辅助
本文证明用铁电向列相替代顺电向列相后，低功率光照射可产生足够强的内建电场实现分子重新取向，为光学控制铁电极化及光子学等应用提供平台。
中文摘要 AI 辅助
液晶显示器（LCD）采用夹在带有透明氧化铟锡（ITO）电极的两块玻璃板之间的顺电向列相薄像素。施加到电极上的电压使分子重新取向，从而改变像素的光学外观。本文证明，当ITO电极电池中的顺电向列相被替换为铁电向列相（NF）时，低功率光照射可以触发类似的分子重新取向。照射产生一个内建电场，该电场足够强以重新取向NF，但太弱而无法影响顺电向列相。ITO/NF对光照射的非凡敏感性为铁电极化的光学控制以及光子学、传感、智能窗等领域的应用创建了一个平台。
英文摘要
Liquid crystal displays (LCDs) employ thin pixels of a paraelectric nematic, confined between two glass plates with transparent indium tin oxide (ITO) electrodes. A voltage applied to the electrodes realigns the molecules, changing the optical appearance of the pixel. Here we demonstrate that a similar molecular realignment can be triggered by low-power light irradiation when the paraelectric nematic in the cell with ITO electrodes is replaced with a ferroelectric nematic (NF). Irradiation creates an intrinsic electric field that is strong enough to realign the NF but too weak to affect the paraelectric nematic. The extraordinary sensitivity of the ITO/NF pair to light irradiation creates a platform for optical control of ferroelectric polarization and applications in photonics, sensing, smart windows, and beyond.
发表机构
- Kent State University（肯特州立大学）
- Institute of Physics, National Academy of Sciences of Ukraine（乌克兰国家科学院物理研究所）
- Institute of Physical Chemistry, Polish Academy of Sciences（波兰国家科学院物理化学研究所）
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