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1.哈尔滨工程大学 物理与光电工程学院 工业和信息化部重点实验室, 黑龙江 哈尔滨 150001
2.核生化灾害防护化学全国重点实验室, 北京 102205
李登辉,男,博士,副研究员,2021年于南开大学获得博士学位,主要从事光场调控、光与物质相互作用方面的研究。E-mail:lidenghui@mail.nankai.edu.cn
收稿:2026-06-22,
修回:2026-07-17,
纸质出版:2026-08-05
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TAN Qinyue, WANG Xupeng, LI Yang, et al. Non-oriented high-performance liquid crystal smart windows[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(8): 1094-1101.
谭钦月, 王旭鹏, 李阳, 等. 无取向的高性能液晶智能窗[J]. 液晶与显示, 2026,41(8):1094-1101. DOI: 10.3724/CJLCD.2026-0112. CSTR: 32172.14.CJLCD.2026-0112.
TAN Qinyue, WANG Xupeng, LI Yang, et al. Non-oriented high-performance liquid crystal smart windows[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(8): 1094-1101. DOI: 10.3724/CJLCD.2026-0112. CSTR: 32172.14.CJLCD.2026-0112.
针对传统液晶智能窗材料体系及制备流程复杂的问题,本文选用负介电各向异性向列液晶作为基体,掺杂阳离子表面活性剂,在无取向处理的情况下,利用ITO导电玻璃制备电控调光智能窗。系统研究了在交流电场下,不同掺杂比例的液晶智能窗在可见光范围内的透射率变化。对比研究了无取向、平行取向和垂直取向3种液晶盒的调光效果,结果表明无取向液晶盒的调光效果优于其他两种取向结构。该类液晶智能窗依靠交变电场诱导离子湍流可以实现透明与雾态的可逆切换,在可见光光谱范围内光强透射率降低60%左右,其上升和下降响应时间分别为31.92 ms和88.01 ms。该器件无需取向处理、结构简单且易制备,为低成本建筑智能窗的产业化应用提供了新方案。
To address the issues of complex material systems and preparation processes in traditional liquid crystal(LC) smart windows, this study employs negative dielectric anisotropy nematic LC as the base matrix, doped with a cationic surfactant, to fabricate electrically controlled dimming smart window using ITO conductive glass without any alignment treatment. We investigated the transmittance variations of LC smart windows with different doping ratios under an alternating current(AC) electric field across the visible light spectrum. A comparative study on the dimming performance of three LC cell configurations—unaligned, parallel-aligned, and homeotropically aligned (vertical), revealed that the unaligned LC cells outperform the other two alignment structures. The proposed LC smart window achieves reversible switching between transparent and hazy states via ion turbulence induced by the alternating electric field. Within the visible light spectrum, the optical transmittance decreases by approximately 60%. The rise and decay response times are 31.92 ms and 88.01 ms, respectively. Requiring no alignment treatment, this device features a simple structure and is facile fabrication, offering a novel solution for the industrial application of low-cost smart windows in buildings.
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