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Electro-optical properties of low viscosity driven holographic polymer dispersed liquid crystals

机译：低粘度驱动全息聚合物分散液晶的电光性能

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Relative diffraction efficiency (RDE), operating voltage, and response times are most important performance characteristics of holographic polymer dispersed liquid crystals (HPDLC). Two types of triallyl isocyanurate (TI) having different structures were incorporated into the conventional transmission grating of HPDLC. Premix viscosity decreased by 13-18% with up to 3% TI, beyond which it increased. TI eliminated induction period and augmented initial grating formation rate at all contents. Saturation RDE increased over 200% while threshold voltage and rise time decreased to about half and 2/3, respectively up to 3% TI, beyond which the tendencies were reversed. Among the two TIs, low viscosity monomer (TA) showed high RDE, while high miscibility monomer (TE) low characteristic voltages and short response times. It is concluded that grating formation is largely favored by low viscosity, while interface tensions and electro-optical performances by miscibility at similar viscosities.
机译：相对衍射效率（RDE），工作电压和响应时间是全息聚合物分散液晶（HPDLC）最重要的性能特征。具有不同结构的两种类型的三烯丙基异氰脲酸酯（TI）被结合到常规的HPDLC透射光栅中。 TI含量高达3％时，预混料的粘度降低了13-18％，超过此粘度则增加。 TI消除了诱导期，并提高了所有含量的初始光栅形成率。饱和RDE增加了200％以上，而阈值电压和上升时间分别下降到TI的一半左右和2/3，分别上升到TI的3％，在此之后，趋势反过来了。在这两个TI中，低粘度单体（TA）显示出较高的RDE，而高混溶性单体（TE）显示出低特征电压且响应时间短。可以得出结论，低粘度在很大程度上有利于光栅的形成，而在相似粘度下的可混溶性则有利于界面张力和电光性能。

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