Electrocatalytic CO2 reduction is a promising way to provide renewable energy from gaseous The development of nanostructures improves efficiency and selectivity for value-added chemicals, but complex limit the conversion rates due poor mass transport during vigorous electrolysis. Herein, we propose three-dimensional (3D) hierarchically porous Au comprising interconnected macroporous channels (200-300 nm) nanopores (∼10 fabricated via proximity-field nanopatterning. macropores enable...

Abstract Z‐scheme‐inspired tandem photoelectrochemical (PEC) cells have received attention as a sustainable platform for solar‐driven CO 2 reduction. Here, continuously 3D‐structured, electrically conductive titanium nitride nanoshells (3D TiN) biocatalytic ‐to‐formate conversion in bias‐free PEC system are reported. The 3D TiN exhibits periodically porous network with high porosity (92.1%) and conductivity (6.72 × 10 4 S m −1 ), which allows enzyme loading direct electron transfer (DET) to...

Our work introduces 3D nanostructured N-doped TiO₂ with enhanced visible absorption for photocatalysis <italic>via</italic> PnP and ALD techniques.

Polymer nanocomposites with inclusion of ceramic nanofillers have relatively high yield strength, elastic moduli, and toughness that therefore are widely used as functional coating films for optoelectronic applications. Although the mechanical properties enhanced increasing fraction nanofiller inclusion, there generally is an upper limit on amount because aggregation fillers in polymer matrix, which typically occurs, degrades and/or optical performances above 5 vol % inclusions. Here, we...

Abstract One of the well‐known strategies for achieving high‐performance light‐activated gas sensors is to design a nanostructure effective surface responses with its geometric advances. However, no study has gone beyond benefits large area and provided fundamental offer rational structure increasing their optical chemical performances. Here, new class UV‐activated sensing nanoarchitecture made highly periodic 3D TiO 2 , which facilitates 55 times enhanced light absorption by confining...

Abstract Emerging flexible optoelectronics requires a new type of protective material that is not only hard but also flexible. Organic–inorganic (O–I) hybrid materials have been used as cover window to increase wear resistance and polymer‐like flexibility. However, the hardness O–I much lower than metals ceramics due low intrinsic organic matrix limited volume fraction inorganic reinforcement. Herein, nanocomposite combining an with continuous ordered 3D nanoshell additional reinforcement...

Titania has attracted considerable interest for use in water purification applications due to its excellent photocatalytic activity. To further improve the efficiency of photocatalysis, numerous nanostructures (i.e. nanoparticles, nanotubes, and nanowires) have been proposed increase surface area titania. Despite high performance nanostructured titania, subsequent difficulties encountered recollection reuse titania inhibit practical application systems. Here we successfully fabricate...

ZnO is a potential thermoelectric material because of its non-toxicity, high thermal stability, and relatively Seebeck coefficient (S) metal oxides. However, the extremely low figure merit (zT), which comes from conductivity (κ) over 40 W m-1 K-1, limits application ZnO. In particular, below 500 K, exhibits nearly negligible zT (<10-3), unless dopant incorporated into crystal structure. Here, we propose new strategy for achieving reduced κ correspondingly increased pure wide temperature...

The pattern resolution of soft lithographic techniques is critically determined by the elastic modulus mold that can support fine and high-aspect-ratio features with conformal adhesion to target substrates. We present a strategy fine-tune molds made polyurethane acrylate optimizing chemical structures composition prepolymer modulator. Trimethylolpropane ethoxylated (15) triacrylate plays key role as delicate modulator for increasing aliphatic urethane diacrylate oligomer its low...

This paper reports a new type of transmitting mode electrochromic device that uses the high-contrast electrochromism poly(3,4-ethylenedioxythiophene) (PEDOT) and operates at long-wavelength infrared (8-12 μm) . To maximize transmittance contrast ratio for thermal camouflage, we control thickness thin PEDOT layer from 25 nm to 400 develop design grid-type counter electrodes. The cyclability can be greatly improved by selective deposition film on grid electrodes as an ion storage without any...

Atomic layer deposition (ALD) is a unique tool for conformally depositing inorganic thin films with precisely controlled thickness at nanoscale. Recently, ALD has been used in the manufacture of using three-dimensional (3D) nanonetwork structure made polymer as template, which pre-formed by advanced 3D nanofabrication techniques such electrospinning, block-copolymer (BCP) lithography, direct laser writing (DLW), multibeam interference lithography (MBIL), and phase-mask (PMIL). The key...

Functional nanocomposites have attracted great attention in a variety of fields application including energy harvesting (or storage) devices, structural materials, heat-dissipating materials and many others due to their controllable material properties (e.g., mechanical, thermal, electrical, optical). However, conventional solid or porous based on nanoparticle-type significant problems such as high aggregation tendency, low percolation ratio mass transport, which cause fatal degradation the...

Abstract Density–strength tradeoff appears to be an inherent limitation for most materials and therefore design of cell topology that mitigates strength decrease with density reduction has been a long‐lasting engineering pursue porous materials. Continuum‐mechanics‐based analyses mechanical responses conventional bending‐dominated structures often give the density–strength scaling law following power‐law relationship exponent 1.5 or higher, which consequentially determines upper bound...

Owing to the increasing demand for miniaturization and integration of electronic devices, thermal interface materials (TIMs) are crucial components removing heat improving lifetime safety devices. Among these, pads reusable alternatives paste-type TIMs; however, conventional comprise a homogeneous polymer with low conductivity. Composite thermally conducting fillers matrices considered suitable high-performance pad owing their controllable properties. However, they degrade performance filler...

Au–TiO2–Ti nanodiodes with a metal–insulator–metal structure were used to probe hot electron flows generated upon photon absorption. Hot electrons, when light is absorbed in the Au electrode of nanodiode, can travel across TiO2, leading photocurrent. Here, we demonstrate amplification flow by (1) localized surface plasmon resonance on plasmonic nanostructures fabricated annealing nanodiodes, and (2) reducing thickness TiO2. We show correlation between changes morphology electrodes caused...

We prepared blue-photoluminescent polyethylene glycol GQDs (PEG-GQDs) through PEG surface passivation. The PL intensity was stronger than that of pristine GQDs. These were then used as LED emitters and the fluorescence mechanism investigated.

An elastomeric poly(dimethylsiloxane) (PDMS) block engraved with periodically arrayed nanopillars serves as a transferable light-trapping stamp for encapsulated organic thin-film solar cells. Diffracted light rays from the interfere one another and self-focus onto active layer of cell, generating enhanced absorption, indicated in current density-voltage measurements.

The pursuit of harnessing superior mechanical properties achieved through the size effect on a macroscopic scale has been prominent focus in engineering, as size-induced strengthening is enabled only nanoscale regime. This study presents metal/ceramic/metal (MCM) nanocomposite reinforced by ceramic nanoarchitectures. Through proximity-field nanopatterning, inch-scale production nanoarchitecture films single fabrication step. developed three-dimensional (3D) Ni/Al

Recently, the durability of high-performance and multifunctional portable electronic devices such as smartphones tablets, has become an important issue. Electronic device housing, which protects internal components from external stimuli, vibration, shock, electrical hazards, is essential for resolving issues. Therefore, materials used housing must possess good mechanical insulating properties. Herein, we propose a novel high-strength polymer nanocomposite based on 3D-aligned aluminum borate...