Improvement in molecular alignment of ferroelectric liquid crystal by Co-ZnO/ZnO core/shell quantum dots
Improvement in molecular alignment of ferroelectric liquid crystal by Co-ZnO/ZnO core/shell quantum dots
复制标题
Co-ZnO/ZnO核/壳量子点改善铁电液晶分子排列
DOI：
10.1080/02678292.2019.1645898
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发表时间：
2020
期刊：
影响因子：
2.2
通讯作者：
S. Mahamuni
中科院分区：
文献类型：
--
作者：
S. Doke;P. Ganguly;S. Mahamuni
摘要铁电液晶（FLC）中掺入Co-ZnO/ZnO核/壳（CZZ）量子点（QD）后，其电光性能得到改善，这是FLC分子更好取向的表现。将适量的核/壳量子点加入到纯FLC中，并通过偏光显微镜、铁电、光致发光（PL）和介电测量进行了研究。有序参数（θ，PS）和PL强度的显著增加以及光泄漏中心和介电损耗因子的减少是分散有CZZ量子点的FLC分子的分子有序性增强的结果。具有发光核/壳QD的FLC复合材料是改进低功率操作的高光致发光基于FLC的显示装置的一个进步。这种发射型液晶显示器将表现出改善的亮度、更好的对比度、宽视角和更低的操作功率。图形摘要
ABSTRACT The ferroelectric liquid crystal (FLC) shows improvement in electro-optical properties on incorporation of Co-ZnO/ZnO core/shell (CZZ) quantum dots (QDs), which is a manifestation of better alignment for FLC molecules. A suitable amount of core/shell QDs was added into pure FLC and studied using polarising optical microscope, ferroelectric, photoluminescence (PL) and dielectric measurements. Significant increase in the order parameters (θ, PS) and PL intensity with reduced light leakage centres and dielectric loss factor are the consequences of enhanced molecular ordering of FLC molecules dispersed with CZZ QDs. FLC composites with luminescent core/shell QDs are a step forward for the improvement of low power operated highly photoluminescent FLC-based display devices. Such emissive liquid crystal displays would exhibit improved brightness, better contrast, wide viewing angle and lower operating power. Graphical abstract
影响因子：
6.7
作者：
Im, Jeong-Hyeok;Lee, Chang-Ryul;Park, Nam-Gyu
通讯作者：
Park, Nam-Gyu