Electrically Controllable Light Scattering Properties of Nematic Liquid Crystal/Polyfluorene Gel Devices

被引：0
作者：
Yagi, Asuka [1 ]
Honma, Michinori [1 ]
Ito, Ryota [1 ]
Nose, Toshiaki [1 ]
机构：
[1] Akita Prefectural Univ, Dept Informat Mechatron, Yurihonjo, Japan
来源：
IEICE TRANSACTIONS ON ELECTRONICS | 2024年 / E107C卷 / 02期
关键词：
liquid crystal; liquid crystal gel; polyfluorene; smart window; CRYSTAL GELS; POLYMER;
D O I：
10.1587/transele.2023DII0005
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In recent years, demand for smart windows with dimming and other functions has been increasing, e.g., polymer dispersed liquid crystals. Liquid crystal (LC) gels also have the potential for smart glass applications owing to their light-scatter ing properties. In this study, LC gels were prepared by mixing nematic LC (E7) with poly(9,9-di-n-octylfluorenyl-2,7diyl) (PFO) as a gelator. The LC gel formed a dense PFO network as the concentration increased. The PFO network structure changed in response to the change in the cooling rate. High contrast ratio of light scattering was obtained for the LC gel device that was fabricated via the 2-wt%-doping of PFO and natural cooling. Furthermore, the PFO concentration and cooling rate were found to affect the response time of the LC gel device.
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页码：29 / 33
页数：5
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