Experimental Advances in Nanoparticle-Driven Stabilization of Liquid-Crystalline Blue Phases and Twist-Grain Boundary Phases
| Autor: | Ioannis Lelidis, George Cordoyiannis, Samo Kralj, George Nounesis, Jan Thoen, Maja Trček, Zdravko Kutnjak, Vasileios Tzitzios, Marta Lavrič |
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| Rok vydání: | 2021 |
| Předmět: |
Technology
TGBA twist-grain boundary phases Materials science Chemistry Multidisciplinary General Chemical Engineering Materials Science ASSEMBLIES PHOTONIC CRYSTALS Oxide Nanoparticle Materials Science Multidisciplinary TRANSITIONS quantum dots Review Physics Applied Topological defect chemistry.chemical_compound liquid crystals Liquid crystal ASTERISK PHASE General Materials Science Nanoscience & Nanotechnology reduced-graphene oxide blue phases QD1-999 Phase diagram Science & Technology screw dislocations LOW-VOLTAGE Physics COLLOIDAL CRYSTALS Chemistry Surface coating chemistry CRITICAL-POINT Chemical physics Quantum dot THERMAL STABILIZATION Physical Sciences microscopy disclination lines Science & Technology - Other Topics nanoparticles Grain boundary calorimetry BEHAVIOR |
| Zdroj: | Nanomaterials Nanomaterials, Vol 11, Iss 2968, p 2968 (2021) |
| ISSN: | 2079-4991 |
| DOI: | 10.3390/nano11112968 |
| Popis: | Recent advances in experimental studies of nanoparticle-driven stabilization of chiral liquid-crystalline phases are highlighted. The stabilization is achieved via the nanoparticles' assembly in the defect lattices of the soft liquid-crystalline hosts. This is of significant importance for understanding the interactions of nanoparticles with topological defects and for envisioned technological applications. We demonstrate that blue phases are stabilized and twist-grain boundary phases are induced by dispersing surface-functionalized CdSSe quantum dots, spherical Au nanoparticles, as well as MoS2 nanoplatelets and reduced-graphene oxide nanosheets in chiral liquid crystals. Phase diagrams are shown based on calorimetric and optical measurements. Our findings related to the role of the nanoparticle core composition, size, shape, and surface coating on the stabilization effect are presented, followed by an overview of and comparison with other related studies in the literature. Moreover, the key points of the underlying mechanisms are summarized and prospects in the field are briefly discussed. ispartof: NANOMATERIALS vol:11 issue:11 ispartof: location:Switzerland status: published |
| Databáze: | OpenAIRE |
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