Self-Organized, One-Dimensional Periodic Structures in a Gold Nanoparticle-Doped Nematic Liquid Crystal Composite
Piotr Lesiak , Karolina Bednarska , Wiktor Lewandowski , Michał Wójcik , S. Polakiewicz , M. Bagiński , Tomasz Osuch , Konrad Markowski , Kamil Orzechowski , Michał Makowski , Jan Bolek , Tomasz Woliński
AbstractComposite structures exhibiting a periodic arrangement of building blocks can be found in natural systems at different length scales. Recreating such systems in artificial composites using the principles of self-assembly has been a great challenge, especially for 1D microscale systems. Here, we present a purposely designed composite material consisting of gold nanoparticles and a nematic liquid crystal matrix that has the ability to self-create a periodic structure in the form of a one-dimensional photonic lattice through a phase separation process occurring in a confined space. Our strategy is based on the use of a thermoswitchable medium that reversibly and quickly responds to both heating and cooling. We find that the period of the structure is strongly related to the size of the confining space. We believe that our findings will allow us to not only better understand the phase separation process in multicomponent soft/colloid mixtures with useful optical properties but also improve our understanding of the precise assembly of advanced materials into one-dimensional periodic systems, with prospective applications in future photonic technologies.
|Journal series||ACS Nano, [ACS NANO], ISSN 1936-0851, e-ISSN 1936-086X, (N/A 200 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||nematic liquid crystal; nanoparticles; self-assembly; self-organization; phase separation; liquid crystal composite; periodic structure|
|ASJC Classification||; ;|
|Score||= 200.0, 08-01-2020, ArticleFromJournal|
|Publication indicators||= 0; = 1; : 2018 = 2.447; : 2018 = 13.903 (2) - 2018=15.149 (5)|
|Citation count*||1 (2020-01-26)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.