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通过采用紫外光聚合诱导相分离法制备聚合物稳定液晶调光器件,利用紫外可见分光光度计来研究器件的不同厚度对聚合物稳定液晶调光器件电光性能的影响.结果表明:随着器件厚度的增加,器件的关态透光率降低,阈值电压升高,饱和电压升高;当器件厚度为5μm时,聚合物稳定液晶智能调光器件的电光性能优良,未通电时,透光率高达97%,当施加40 V电压时,透光率低于10%;响应时间非常短,灵敏度非常高,从关态到开态响应时间仅仅需要0.025 s,从开态到关态响应时间需要0.060 s.这些优异性能使得基于聚合物稳定液晶的智能窗在室内光线智能管理领域有着巨大的应用潜力.
The effect of different thickness of the device on the electro-optical properties of polymer stabilized liquid crystal light-adjusting devices was studied by ultraviolet-visible spectrophotometer by using UV-induced phase separation method.The results show that with the thickness of device The threshold light voltage and the saturation voltage increase. When the device thickness is 5μm, the electro-optical properties of the polymer-stabilized liquid crystal smart dimming device are excellent. When the device is not energized, the light transmittance is as high as 97%, less than 10% light transmission when 40 V is applied; response time is very short, sensitivity is very high, response time from OFF to ON only takes 0.025 s, response time from ON to OFF requires 0.060 s. These excellent properties make the smart windows based on polymer-stabilized liquid crystal have great potential in the field of indoor light intelligent management.