Siarkowska Agata, Chychłowski Miłosz, Budaszewski Daniel, Jankiewicz Bartłomiej, Bartosewicz Bartosz, Woliński Tomasz R
Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662, Warsaw, Poland.
Institute of Optoelectronics, Military University of Technology, Kaliskiego 2, 00-908, Warsaw, Poland.
Beilstein J Nanotechnol. 2017 Dec 27;8:2790-2801. doi: 10.3762/bjnano.8.278. eCollection 2017.
Thermo- and electro-optical properties of a photonic liquid crystal fiber (PLCF) enhanced by the use of dopants have been investigated. A 6CHBT nematic liquid crystal was doped with four different concentrations of gold nanoparticles (NPs), 0.1, 0.3, 0.5 and 1.0 wt %, for direct comparison of the influence of the dopant on the properties of the PLCF. The thermo-optical effects of the liquid crystal doped with gold NPs were compared in three setups, an LC cell, a microcapillary and within the PLCF, to determine if the observed responses to external factors are caused by the properties of the infiltration material or due to the setup configuration. The results obtained indicated that with increasing NP doping a significant reduction of the rise time under an external electric field occurs with a simultaneous decrease in the nematic-isotropic phase transition temperature, thus improving the thermo- and electro-optical properties of the PLCF.
研究了通过使用掺杂剂增强的光子液晶光纤（PLCF）的热光和电光特性。向6CHBT向列型液晶中掺杂四种不同浓度（0.1、0.3、0.5和1.0 wt%）的金纳米颗粒（NP），以直接比较掺杂剂对PLCF特性的影响。在三种装置中比较了掺杂金纳米颗粒的液晶的热光效应，即液晶盒、微毛细管和PLCF内部，以确定观察到的对外部因素的响应是由渗透材料的特性还是装置配置引起的。所得结果表明，随着NP掺杂量的增加，外部电场下的上升时间显著缩短，同时向列-各向同性相变温度降低，从而改善了PLCF的热光和电光特性。
