ABSTRACT Cd0.15Zn0.85S/ZnS core/shell quantum dots (CSQDs) of size 7.54 ± 0.99 nm in diameter were prepared via gram-scale one-pot synthesis method and dispersed in a ferroelectric liquid crystalline (FLC) material into two different concentrations. Spectroscopic, electro-optical (E-O) and morphological characterisations of aforementioned composites have been carried out. CSQDs cause a significant contraction in the width of chiral smectic C (SmC*) mesophase that has also been theoretically verified. Diffusion–controlled processes are responsible for the fluorescence quenching in the FLC/CSQDs composites which has been explained by using the Stern–Volmer quenching equation. The mesomorphic investigation has revealed that helical deformation takes place in the FLC/CSQDs composites, due to which the temperature-dependent gradual growth of ferroelectric domains is noticed. The perturbed helical geometry evinces a new structure-property correlation having a molecular switching time of 135 μs that is 51% faster response as compared to the pristine system. Resultant spontaneous polarisation in the matrix of FLC/CSQDs composites is diminished because of the induced homeotropic and flexoelectric contributions. The faster E-O response and optical imaging are the fascinating features of the FLC/CSQDs composites that can probably be utilised in gadget displays. Graphical abstract

中文翻译：

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通过 Cd0.15Zn0.85S/ZnS 核/壳量子点分散在手性近晶 C 基质中的相收缩、荧光猝灭和拓扑缺陷的形成：小工具显示器的更快电光响应

摘要 通过克级一锅合成法制备了直径为 7.54 ± 0.99 nm 的 Cd0.15Zn0.85S/ZnS 核/壳量子点 (CSQD)，并将其分散在铁电液晶 (FLC) 材料中成两种不同浓度. 已经进行了上述复合材料的光谱、电光 (EO) 和形态表征。CSQD 导致手性近晶 C (SmC*) 中间相宽度显着收缩，这也已在理论上得到证实。扩散控制过程是 FLC/CSQDs 复合材料中荧光猝灭的原因，这已通过使用 Stern-Volmer 猝灭方程进行了解释。介晶研究表明，FLC/CSQDs 复合材料发生螺旋形变形，因此，注意到铁电畴的温度依赖性逐渐​​增长。扰动的螺旋几何表现出一种新的结构-性质相关性，其分子转换时间为 135 μs，与原始系统相比，响应速度快 51%。FLC/CSQDs 复合材料的基质中产生的自发极化由于诱导的垂直和挠曲电贡献而减少。更快的 EO 响应和光学成像是 FLC/CSQDs 复合材料的迷人特征，可能可用于小工具显示器。图形概要 FLC/CSQDs 复合材料的基质中产生的自发极化由于诱导的垂直和挠曲电贡献而减少。更快的 EO 响应和光学成像是 FLC/CSQDs 复合材料的迷人特征，可能可用于小工具显示器。图形概要 FLC/CSQDs 复合材料的基质中产生的自发极化由于诱导的垂直和挠曲电贡献而减少。更快的 EO 响应和光学成像是 FLC/CSQDs 复合材料的迷人特征，可能可用于小工具显示器。图形概要