荧光染料掺杂增亮聚合物稳定的双稳态胆甾相液晶膜。
Fluorescent Dye-Doped Brightening Polymer-Stabilized Bistable Cholesteric Liquid Crystal Films.
机构信息
Xi'an Key Laboratory of Advanced Photo-Electronics Materials and Energy Conversion Device, School of Electronic Information, Xijing University, Xi'an 710123, China.
Shandong Lanbeisite Educational Equipment Group Co., Ltd., Jinan 250100, China.
出版信息
Molecules. 2023 Apr 16;28(8):3509. doi: 10.3390/molecules28083509.
Brightening polymer-stabilized bistable cholesteric liquid crystal (PSBCLC) films with doped fluorescent dyes were prepared using the polymerization-induced phase separation (PIPS) method. The transmittance performance behavior of these films in both states (focal conic and planar) and absorbance change in multiple dye concentrations were studied using a UV/VIS/NIR spectrophotometer. The change occurring in dye dispersion morphology with different concentrations was obtained by means of the polarizing optical microscope. The maximum fluorescence intensity of different dye-doped PSBCLC films was measured using a fluorescence spectrophotometer. Moreover, the contrast ratios and driving voltages of these films were calculated and recorded to demonstrate film performance. Finally, the optimal concentration of dye-doped PSBCLC films with a high contrast ratio and a relatively low drive voltage was found. This is expected to have great potential applications in cholesteric liquid crystal reflective displays.
采用聚合诱导相分离（PIPS）法制备了掺杂荧光染料的聚合物稳定双稳态胆甾相液晶（PSBCLC）膜。使用紫外可见近红外分光光度计研究了这些膜在两种状态（焦锥和平面）下的透过率性能行为以及在多种染料浓度下的吸收变化。通过偏光显微镜获得了不同浓度下染料分散形态的变化。使用荧光分光光度计测量了不同染料掺杂 PSBCLC 膜的最大荧光强度。此外，还计算和记录了这些膜的对比度和驱动电压，以展示其性能。最后，找到了具有高对比度和相对较低驱动电压的最佳染料掺杂 PSBCLC 膜浓度。这有望在胆甾相液晶反射显示器中具有很大的应用潜力。
Zotero 插件