Abstract Liquid crystalline blue phase (BP) with 3D cubic nanostructure has attracted much interest in the fields of photonic crystals due to their unique optical properties and ability control flow light. However, there remains a challenge for simultaneously achieving self‐assembly mechanochromic response soft nanostructures. Herein, scalable strategy preparation nanostructured films using oligomerization Michael addition reaction, which can induce assembly double‐twisted cylinders...

Porous polymer radiative cooling coatings (PPCs) have attracted attention due to their ability of drawing and radiating heat from a hot object into the outer space, without any energy consumption. However, high performance PPCs has yet be achieved large-scale production technology is still facing cost complex manufacturing constraints. Here, we propose simple, inexpensive, scalable approach fabricate anisotropic (P(VdF-HFP))ap (TPCs) by dissolution diffusion between solvent...

Mimicking biological skin enabling direct, intelligent interaction between users and devices, multimodal sensing with optical/electrical (OE) output signals is urgently required. Owing to this, this work aims logically design a stretchable OE biomimetic (OE skin), which can sensitively sense complex external stimuli of pressure, strain, temperature, localization. The consists elastic thin polymer-stabilized cholesteric liquid crystal films, an ion-conductive hydrogel layer, protective...

Abstract Programing nanostructure of soft photonic crystal materials to try diversify has great potential for application in the field information security, lasing, and display. However, complex programming nanostructures regulating controlling their structural color stimuli‐response behavior remain a technical challenge. Here, strategy is demonstrated hybrid encoding crystals using cholesteric liquid films (CLCFs). The public secure can be easily edited through independent tuning Bragg...

A self-assembled three-dimensional (3D) nanomaterial, blue phase liquid crystal (BPLC), with elastic deformation is the aim of a stimuli-responsive material because it combines 3D photonic nanostructure and rubber elasticity elastomer network. However, there still lack flexible approach to preparing BPLC films high low glass-transition temperature. Here, we develop reproducible scalable two-step protocol thiol-acrylate Michael addition (TAMA)–photopolymerization reaction for preparation...

Abstract Passive radiative cooling (PRC) can spontaneously dissipate heat to outer space through atmospheric transparent windows, providing a promising path meet sustainable development goals. However, achieving simultaneously high transparency, color‐customizable, and thermal management of PRC anti ultraviolet (anti‐UV) films remains challenge. Herein, simple strategy is proposed utilize liquid crystalline polymer, with mid‐infrared emissive, forming customizable structural color film by...

Polymer-stabilised blue-phase liquid crystal (PS-BPLC) is a soft artificial three-dimensional photonic (PC) functional material for optics and optoelectronics because of its superior optical properties. In this work, we demonstrated that PS-BPLC film could sense selectively detect the xylene, heptane, cyclohexane, dichloromethane ethyl alcohol vapours rapidly accurately. When was alternately exposed to volatile air, Bragg reflection wavelength reversibly significantly shift adsorption...

Smart windows have become increasingly popular due to their ability provide privacy protection, energy efficiency, and user control. Therefore, this technology has a wide range of applications in various fields such as construction, automotive, aviation, renewable energy. However, commercialisation faces two significant challenges the slow response speed low transmittance. This work demonstrates 5CB-doped polymer-stabilised sphere-phase liquid crystal (PS-SPLC) smart window with...

A refractive index (RI) tunable polysiloxane coating was fabricated based on the cross-linked network structure embedded with mesoporous silica nanoparticles (MSNs), in which MSNs were utilized to modulate RI as well support interior of coating. The Si-O-Si inorganic backbone combination characteristics from photopolymerization active bonds produced main structure, and controllable embedding constructed network-sphere structure. This approach eliminated high-temperature post-treatment that...

An electrically switchable band-edge laser has been demonstrated in a dye-doped polymer-stabilised blue phase liquid crystal. The light intensity of the can be tuned three-dimensional space with switching time submillisecond, which promotes this widespread use displays, point-of-care biomedical analysis, and optical security coatings.

A high-power laser system is employed to drive the fusion ignition realize sustainable supply of green energy according inertial confinement theory, in which frequency-converting crystals are sealed terminal vacuum chamber and utilized turn incident (1053 nm) desired one (351 nm). However, reflected 351 nm from pellet hohlraum that goes back through crystal found be harmful for upstream elements located before chamber. In this study, a specialized coating was designed fabricated both ensure...

In natural atmospheric situation, the laser impulse coupling coefficients for aluminium targets are measured on our piezoelectric sensor. The sandwich structure of sensor is specially designed to enhance its response sensitivity. relationship between and voltage signals given. results show that when pulse width 10 ns, radiation energy 12·7 mJ beam spot area 0·43 mm2, coefficient Cm has maximum value which 47·1×10−5 kg·m·s−1 J−1.

Abstract A flexible self‐powered piezoelectric nanogenerator (FSPN) of high power density was constructed using a poly (vinylidene fluoride) (PVDF) polymer matrix based on solution crystallization. Since the solubility parameter N‐methylpyrrolidone (NMP) closed to that PVDF, FSPNs fabricated by PVDF and NMP showed concentrations β ‐phase 6.6 W/m 3 together with excellent mechanical properties transparent. In addition, FSPN retained its performance even after 2000 cycles cantilever vibration,...

The electro-optical properties of polymer-stabilised sphere phase liquid crystal devices are investigated. An extended anomalous diffraction approach (ADA) has been proposed to show the trend between transmittance and electric field, but model deviates from experiment in some region. Herein, a corrected model, called depolarisation ADA, is fit experimental data. Good agreement achieved simulated results. This ADA will make significant impact on optimisation emerging devices.

Based on Landau-de Gennes theory and differential iteration method, in a cylindrical shell with degenerate planar anchoring at both interfaces, the double-twist director configuration caused by large saddle-splay elasticity is investigated. The combined effects of curvature spontaneous chiral structure are analysed. Between opposite-handed domains, we find two domain wall structures new 1/2 defect ring structure. stabilities these analysed an energy comparison.

On the basis of Landau-de Gennes theory and finite-difference iterative method, autonomic modulation chiral inversion in a cylindrical cavity with degenerate planar anchoring is investigated. Under applied helical twisting power (inversely related to pitch P), can be achieved due nonplanar geometry effect, capacity rises increase power. The combined effect saddle-splay K_{24} contribution (corresponding L_{24} term theory) are analyzed. It found that more strongly modulated on condition...