Applications of Polar and Ferroelectric Nematics as Electrophoretic Fluids

极性和铁电向列相作为电泳液的应用

• 批准号: 2826665
• 金额: --
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2826665
• 关键词: Applications; Polar; Ferroelectric; Nematics; Electrophoretic

One of the most exciting areas in Soft Matter Physics is the recent discovery of Ferroelectric Nematic Fluids. It has long been believed that liquid crystals only form nematic phases with equal probability of dipoles parallel or anti-parallel. The director is not actually a vector but a pseudo-vector: n = -n. But recently, the rule books have had to be rewritten. This began in 2010 with the discovery by Nagaraj of a spontaneously bent nematic state. Then, in 2017, Mandle discovered the a phase with spontaneous splay, which proved to be ferroelectric n not equal to -n.So, we are interested to explore what the applications are for such materials. Ideas that should be explored are the Non-linear optical response offered by these materials. This has the potential for ultra-fast electro-optic modulators in optical communications. Another avenue is the use of the materials as ferro-fluids. The ferroelectric polarization offers interesting effects for moving liquids around in response to electric fields; a sort of ferro-phoretic material. This could be useful in switchable lenses for your mobile phone, in micro-fluidic actuators, or perhaps in ultra bright full-colour reflective displays.

软物质物理学中最令人兴奋的领域之一是最近发现的铁电向列流体。长期以来人们认为液晶仅以偶极子平行或反平行的概率相等形成向列相。导演实际上不是一个向量，而是一个伪向量：n = -n。但最近，规则手册不得不被重写。这始于 2010 年 Nagaraj 发现自发弯曲向列态。然后，在2017年，Mandle发现了具有自发展开的a相，该相被证明是铁电性n不等于-n。因此，我们有兴趣探索此类材料的应用。应该探索的想法是这些材料提供的非线性光学响应。这对于光通信中的超快电光调制器具有潜力。另一种途径是将这些材料用作铁磁流体。铁电极化为响应电场而移动液体提供了有趣的效果；一种铁电泳材料。这对于手机的可切换镜头、微流体执行器或超亮全彩反射显示器可能很有用。