Materiales avanzados

 

Materiales avanzados

Dual Role of Beam Polarization and Power in Nematic Liquid Crystals: A Comprehensive Study of TE- and TM-Beam Interactions
22/02/2024 - Optical spatial solitons are self-guided wave packets that maintain their transverse profile due to the self-focusing effect of light. In nematic liquid crystals (NLC), such light beams, called...
Cholesteric Liquid Crystals with Thermally Stable Reflection Color from Mixtures of Completely Etherified Ethyl Cellulose Derivative and Methacrylic Acid
31/01/2024 - Cellulose derivatives have attracted attention as environmentally friendly materials that can exhibit a cholesteric liquid crystal (CLC) phase with visible light reflection. Previous reports have...
Effects of Ferric Ions on Cellulose Nanocrystalline-Based Chiral Nematic Film and Its Applications
31/01/2024 - Chiral nematic materials have been attracting attention in fields of advanced functional applications due to their unique iridescent colors and tunable helical structure. A precisely decreased pitch...
Impact of Endcap Molecules on Temperature?Responsive Cholesteric Liquid Crystal Oligomers in Structural Color Stability and Hypsochromic Shift
24/01/2024 - Cholesteric liquid crystal oligomers are an interesting class of temperature responsive structurally, colored materials. However, the role of endcap molecules in these oligomers is rather unexplored....
High Performance and Reprocessable In Situ Generated Nanofiber Reinforced Composites Based on Liquid Crystal Polyarylate
21/01/2024 - The incorporation of NDA with kinked structure into liquid crystal polyarylate promotes the formation of in situ generated NFRC which possesses superior reprocessability and unprecedent...
Electrically Tunable Two-Color Cholesteric Laser
09/12/2023 - Two-color lasing emission from an asymmetric structure, consisting of two dye-doped cholesteric liquid crystal (DD-CLC) layers separated by a transparent interlayer, is demonstrated. The DD-CLC...
New Multifunctional Bipyrimidine?Based Chromophores for NLO?Active Thin?Film Preparation
28/11/2023 - Herein, the preparation of bipyrimidine?based chromophores presenting alkoxystyryl donor groups carrying aliphatic achiral and chiral chains on the 4 position is described. Symmetry breaking by...
Self?healing polymers for soft actuators and robots
23/11/2023 - Advances in artificial intelligence technology bring a rising demand on stimuli responsive actuating materials and soft actuators. By the virtue of easy deformation and mechanical resilience,...
Liquid Crystal Elastomer Artificial Tendrils with Asymmetric Core–sheath Structure Showing Evolutionary Biomimetic Locomotion
08/10/2023 - The sophisticated and complex haptonastic movements in response to environmental?stimuli of living organisms have always fascinated scientists. However, how to fundamentally mimic the sophisticated...
Cholesteric Spherical Reflectors with Tunable Color from Single?Domain Cellulose Nanocrystal Microshells
05/10/2023 - The wavelength? and polarization?selective Bragg reflection of visible light exhibited by films produced by drying cholesteric liquid crystal (CLC) suspensions of cellulose nanocrystals (CNCs) render...
Birefringent polyvinyl alcohol layers as retardation components for display devices
23/09/2023 - Optically birefringent polymers have found utility in numerous applications, especially in liquid crystal displays. This work is focused on inducing molecular ordering in polyvinyl alcohol films in...
Understanding Microstructural Development of Perovskite Crystallization for High Performance Solar Cells
10/09/2023 - Solution crystallization in film devices has attracted broad interest from various fields such as perovskite solar cells. However, the detailed perovskite crystallization kinetics remain unclear due...
Preparation of polymer?stabilized cholesteric liquid crystal films capable of broadband reflection using a three?layer system of self?diffusion
06/09/2023 - Through a simple and effective method for preparing broadband reflective liquid crystal films, the advantages of the three?layer system are expanded based on the two?layer system. The cholesteric...
Role of New Chiral Additives on Physical-Chemical Properties of the Nematic Liquid Crystal Matrix
02/09/2023 - We have synthesized and studied three new chiral substances as additives to a nematic liquid crystal. The difference in the optical activity and chemical structure of additive molecules results in...
Self-Vibration of a Liquid Crystal Elastomer Fiber-Cantilever System under Steady Illumination
13/08/2023 - A new type of self-oscillating system has been developed with the potential to expand its applications in fields such as biomedical engineering, advanced robotics, rescue operations, and military...
Patterning Quantum Dots via Photolithography: A Review
02/08/2023 - Quantum dots (QDs) are used as promising materials for next?generation displays due to their excellent electrical/optical properties. Strategies for patterning QDs via photolithography (conventional...
Liquid Crystal Materials for Biomedical Applications
12/07/2023 - In this review, the latest achievements of liquid crystal materials applied in biomedical fields are summarized. The basic concepts and components of liquid crystals and the functional materials...
A Review of Developments in Polymer Stabilized Liquid Crystals
06/07/2023 - Polymer-stabilized liquid crystals (PSLCs) are multi-functional materials consisting of polymer networks in a continuous phase of liquid crystals (LCs), of which polymer networks provide anchoring...
Chemically and biochemically responsive liquid crystal polymer networks and elastomers
04/07/2023 - This mini?review explores chemoresponsive liquid crystal (LC) polymers. It discusses their potential applications, including sensing and actuation, and highlights recent advances and challenges in...
Shape?Morphing Liquid?Crystal polymers
16/06/2023 - Shaping up: Liquid?crystal polymers are considered one of the most promising candidates for intelligent shape?morphing materials. In this review, we discuss recent developments in energy conversion,...
Physical and Thermal Characterizations of Newly Synthesized Liquid Crystals Based on Benzotrifluoride Moiety
10/06/2023 - The mesomorphic stability and optical activity of new group-based benzotrifluoride liquid crystals, (E)-4-(((4-(trifluoromethyl) phenyl) imino) methyl) phenyl 4-(alkyloxy)benzoate, or In, were...