当前位置: X-MOL 学术Front. Phys. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Quantum Dot-Driven Stabilization of Liquid-Crystalline Blue Phases
Frontiers in Physics ( IF 3.1 ) Pub Date : 2020-07-09 , DOI: 10.3389/fphy.2020.00315
George Cordoyiannis , Marta Lavrič , Maja Trček , Vasileios Tzitzios , Ioannis Lelidis , George Nounesis , Matej Daniel , Zdravko Kutnjak

Liquid crystals hosting nanoparticles comprise a fascinating research field, ranging from fundamental aspects of phase transitions to applications in optics and photonics. Liquid-crystalline phases exhibit topological defects that can be used for assembly of nanoparticles in periodical arrays, and at the same time, the nanoparticles can increase the stability range of liquid-crystalline phases. This has been experimentally demonstrated over the past few years in the case of blue phases that are present in some strongly chiral liquid crystals. Experimental results in quantum dot-driven blue phase stabilization are presented here by means of high-resolution calorimetry and polarizing optical microscopy. It is demonstrated that quantum dots essentially stabilize the macroscopically amorphous blue phase III. There are discussed similarities and differences between the effects of spherical and anisotropic nanoparticles on blue phase stabilization; moreover, future prospects and trends in the field are addressed.



中文翻译:

液晶蓝相的量子点驱动稳定

承载纳米粒子的液晶构成了一个引人入胜的研究领域,从相变的基本方面到光学和光子学中的应用。液晶相表现出拓扑缺陷,可用于将纳米颗粒以周期性阵列组装,同时,纳米颗粒可增加液晶相的稳定性范围。在过去几年中,在一些强手性液晶中存在蓝相的情况下,已经通过实验证明了这一点。本文通过高分辨率量热法和偏振光学显微镜介绍了量子点驱动的蓝相稳定化的实验结果。已经证明,量子点基本上稳定了宏观上无定形的蓝相III。讨论了球形和各向异性纳米粒子对蓝相稳定作用的异同。此外,还讨论了该领域的未来前景和趋势。

更新日期:2020-08-31
down
wechat
bug