Lalik Sebastian, Stefańczyk Olaf, Dardas Dorota, Deptuch Aleksandra, Yevchenko Tetiana, Ohkoshi Shin-Ichi, Marzec Monika
Institute of Physics, Jagiellonian University, 30-348 Kraków, Poland.
Department of Chemistry, School of Science, The University of Tokyo, Tokyo 113-0033, Japan.
Molecules. 2022 Jun 7;27(12):3663. doi: 10.3390/molecules27123663.
Modification of the physical properties of the (S)-MHPOBC antiferroelectric liquid crystal (AFLC) by doping with low concentrations of gold nanoparticles is presented for the first time. We used several complementary experimental methods to determine the effect of Au nanoparticles on AFLC in the metal-organic composites. It was found that the dopant inhibits the matrix crystallization process and modifies the phase transitions temperatures and switching time, as well as increases the helical pitch and spontaneous polarization, while the tilt angle slightly changes. We also showed that both the LC matrix and Au nanoparticles show strong fluorescence in the green light range, and the contact angle depends on the temperature and dopant concentration.
首次提出通过掺杂低浓度金纳米颗粒来改变（S）-MHPOBC反铁电液晶（AFLC）的物理性质。我们使用了几种互补的实验方法来确定金纳米颗粒对金属有机复合材料中AFLC的影响。发现掺杂剂抑制了基体结晶过程，改变了相变温度和切换时间，同时增加了螺旋节距和自发极化，而倾斜角略有变化。我们还表明，液晶基体和金纳米颗粒在绿光范围内均表现出强烈的荧光，并且接触角取决于温度和掺杂剂浓度。
