Aerosol jet printing polymer dispersed liquid crystals on highly curved optical surfaces and edges.
Aerosol jet printing polymer dispersed liquid crystals on highly curved optical surfaces and edges.
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DOI：
10.1038/s41598-022-23292-9
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发表时间：
2022-11-02
影响因子：
4.6
通讯作者：
中科院分区：
文献类型：
--
作者：
我们展示了一种利用气溶胶喷射印刷（AJP）生产聚合物分散液晶（PDLC）器件的新技术。PDLC需要两个基底作为氧化铟锡电极的支架，这限制了器件的几何形状。我们的方法通过将电极直接印刷到也被印刷的PDLC的表面上来排除对第二基板的要求。该方法具有潜在的非接触式印刷技术的实施，用于各种液晶基器件上的非平面基板上的附加。我们报告了将PDLC膜直接沉积到非平面光学表面上的演示，包括在棱镜的90°边缘上印刷的功能器件。扫描电子显微镜用于检查聚合物电极的表面特征和主体聚合物中的液晶域。PDLC的最小弛豫时间在1.3 ms处测量，其中施加800 Hz、90 V、峰-峰（Vpp）AC场。交叉极化传输减少了高达3.9倍。在0和140 V之间，在100 Hz下报告了1.4的透明/散射对比度。
We demonstrate a new technique for producing Polymer Dispersed Liquid Crystal (PDLC) devices utilising aerosol jet printing (AJP). PDLCs require two substrates to act as scaffold for the Indium Tin Oxide electrodes, which restricts the device geometries. Our approach precludes the requirement for the second substrate by printing the electrode directly onto the surface of the PDLC, which is also printed. The process has the potential to be precursory to the implementation of non-contact printing techniques for a variety of liquid crystal-based devices on non-planar substrates. We report the demonstration of direct deposition of PDLC films onto non-planar optical surfaces, including a functional device printed over the 90° edge of a prism. Scanning Electron Microscopy is used to inspect surface features of the polymer electrodes and the liquid crystal domains in the host polymer. The minimum relaxation time of the PDLC was measured at 1.3 ms with an 800 Hz, 90 V, peak-to-peak (Vpp) applied AC field. Cross-polarised transmission is reduced by up to a factor of 3.9. A transparent/scattering contrast ratio of 1.4 is reported between 0 and 140 V at 100 Hz.
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影响因子：
3.8
作者：
Hobbs, Matthew J.;Zhu, Chengxi;Willmott, Jon R.
通讯作者：
Willmott, Jon R.
影响因子：
3.8
作者：
Chung, Seok-Hwan;Noh, Hee Yeon
通讯作者：
Noh, Hee Yeon
影响因子：
1.9
作者：
AUBOURG, P;HUIGNARD, JP;MULLEN, RA
通讯作者：
MULLEN, RA
影响因子：
0.7
作者：
Hakemi, H.
通讯作者：
Hakemi, H.
影响因子：
4.5
作者：
Liu, Yourong;Shen, Jinrong;Zhuang, Songlin
通讯作者：
Zhuang, Songlin