Abstract The lithium–sulfur (Li–S) battery is an attractive high‐energy‐density technology for future flexible and wearable electronics, but it a challenge to simultaneously realize adequate flexibility, stability, energy density. Recent studies show that fibrous materials are promising achieve batteries with high density, by taking advantages of their intrinsic lightweight, large surface area, cost‐effectiveness. With good tunability the structure function, can be suitable construct various...

The normalized PL emission spectra of graphite-like carbon nitride (g-C₃N₄) modified with different non-metal ions (boron and sulfur) exhibit interesting scientific variation.

Abstract Binders play a critical role in stabilizing the sulfur cathode of Li‐S and Na‐S batteries. Over past decade, design binder molecules has gone through tremendous evolution from primarily maintaining structural integrity electrode against volume change to rationally immobilizing polysulfide intermediate facilitating electron/ion transport charge discharge process. This article reviews development for batteries perspective molecular design, comprehensively discusses correlation between...

The high-precision patterning of metal halide perovskites (MHPs) is paramount importance for their device application. Here, we demonstrate the femtosecond (fs)-laser-assisted formation three-dimensional MHP nanocrystal (NC) patterns with strong blue photoluminescence (PL) inside an oxide glass. Our strategy enables crystallization and erasing CsPb(Cl/Br)3 NCs a glass localized around laser focal area through combination fs irradiation thermal treatment processes. These recoverable exhibit...

Pulsed lasers operating in the mid-infrared (3-25 µm) are increasingly becoming light source of choice for a wide range industrial and scientific applications such as spectroscopy, biomedical research, sensing, imaging, communication. Up to now, one factors limiting pulsed is lack optical switch with capability pulse generation, especially those wideband response. Here, semiconductor material bismuth oxyselenide (Bi2 O2 Se) facile processibility, constituting an ultrabroadband saturable...

Abstract Controlled morphology modulation of graphene carbon nitride (g‐C 3 N 4 ) is successfully realized from bulk to 3D loose foam architecture via the blowing effect a bubble, which can be controlled by heating rate. The network comprised spatially scaffolded few‐atom‐layer interconnected flakes with large specific surface area, as supporters prevent agglomeration and provide pathway for electron/phonon transports. photocatalytic performance strutted g‐C toward RhB decomposition hydrogen...

In materials showing reverse saturable absorption (RSA), optical transmittance decreases at intense laser irradiation. One approach to application of these is protect the sensors or human eyes from damage. To date, research has mainly concentrated on thin films and suspensions graphite its nanostructure (including nanotubes, graphene, graphene oxides), which are used as an limiter for nanosecond pulses. Moreover, individual pieces semiconductor usually exhibit increased due when energy...

Advances in stretchable and flexible sensors are meeting the demands of an expanding range applications, such as wearable healthcare, vivo monitoring, soft interactive robots. Unlike conventional rigid sensors, elastic material-based more adaptable to applied objects which involve dynamic irregular surfaces. Flexible optical fiber offer superior advantages over electronic including high sensitivity, rapid response time, biocompatibility, immunity electromagnetic interference, enhanced...

Abstract The acquisition of stable and high‐areal‐capacity S cathodes over 10 mA h cm −2 is a critical indispensable step to realize the high energy density configuration. However, increasing areal capacity often deteriorates specific stability due aggravated dissolution diffusion solvable polysulfides in thick electrode. Herein, design freestanding composite cathode that leverages 3D covalent binding sites chemical adsorption environment offer dissolution‐limiting diffusion‐blocking...

Abstract Polymeric g‐C 3 N 4 with controllable photoluminescence emission wavelength in the whole visible light range (450–650 nm) is synthesized through one‐step molecular doping during thermal condensation process of conjugated framework, which opens up its application beyond conventional catalysis scopes. By adjusting doped content hetero‐molecules, modified optical properties controlled according to demand practical applications can be facilely and largely obtained. It overcomes...

Abstract Fluorescent detection is a new spectroscopic measurement for ions sensing due to the advantages of real‐time determination with high selectivity, accuracy, and low cost. However, chemosensors based on fluorescent are usually determined by absolute intensity from monochromatic emission signal, which easy be fluctuated external environment, especially Fe 3+ in complex fluids. Herein, we rationally design dual‐emission Eu : CDs@ZIF‐8 construct ratiometric sensor self‐calibrating...

The use of a conducting interlayer between separator and cathode is one the most promising methods to trap lithium polysulfides (LiPSs) for enhancing performance lithium-sulfur (Li-S) batteries. Red phosphorus nanoparticles (RPEN )-coated carbon nanotube (CNT) film @CF) reported herein as novel Li-S batteries, which shows strong chemisorption LiPSs, good flexibility, excellent electric conductivity. A pulsed laser ablation method engaged ultrafast production RPEN uniform morphology, are...

Flexible solid-state lithium metal batteries (SSLMBs) are highly desirable for future wearable electronics because of their high energy density and safety. However, flexible SSLMBs face serious challenges not only in regulating the Li plating/stripping behaviors but also enabling mechanical flexibility cell. Both largely associated with interfacial gaps between solid electrolytes electrodes. Here, a UV-permeable composited anode (UVp-Li), which possesses unique light-penetrating interwoven...

Abstract Loess landslides have complicated deformation mechanisms. Accurately describing the internal failure of loess and establishing a theoretical method landslide instability evaluation for prevention subsequent become important topics in western development project construction China. This paper presents case study Zhonglou Mountain Shaanxi Province, Based on field investigation results, two-dimensional stability analysis model was constructed using finite element method. Taking...

Abstract Increasing the electrode thickness of energy‐storage devices can enhance areal capacitance, but often results in a significant decrease volumetric capacitance. This tradeoff between capacitance and thickness, which is ascribed to poor ion charge transport thick electrodes, has been major obstacle realizing high‐energy‐density devices. Herein, an inverse opaline metallic membrane (IOMM) reported as stable high‐rate electrode, displays linear increase function thickness. The IOMM...

Abstract PbS quantum dot (QD)‐doped glasses were fabricated through melt‐quenching method. After heat treatment schedule, uniform QDs precipitated in the and near‐infrared emission covering 900‐1700 nm was obtained under excitation. From photoluminescence (PL) spectra lifetime decay curves, whole band of QD‐doped consisted from 1S‐1S state trap state. While using excitation with higher energy, full width at half maximum (FWHM) broadened because smaller excited. Energy transfer process among...

Strategies to control the various interfaces of a sulfur cathode toward high stability and energy density are discussed.

Abstract The emerging metal halide perovskites are challenging the traditional scintillators in field of radiation detection and radiography. However, they lack capability for remote real‐time monitoring imaging confined hostile conditions. To address this issue, details on an inorganic scintillating glass fiber incorporating perovskite quantum dots (QDs) as highly efficient pixelated emitters reported, while fibers themselves serve at same time low‐loss waveguides, enabling long‐distance...

Abstract As a potential material applied in the photocatalytic field, graphitic carbon nitride (g‐C 3 N 4 ) has attracted extensive attention for its advantages of visible‐light response, excellent thermodynamic, and chemical stability. However, performance g‐C is still limited practical applications. Here, using facile thermal polymerization method, unique W‐doped foam was synthesized to realize enhanced degradation Rhodamine B evolution hydrogen. Compared with pure , tungsten doping...

ABSTRACT The application of graphitic carbon nitride (g‐C 3 N 4 ) has been restricted in some optoelectronics fields due to its narrow tunable emission region. In order engineer the optical properties, herein we combine Eu 3+ :Y 2 O nanocrystals with g‐C control electronic structure. Surprisingly, increasing concentration nanocrystals, photoluminescence /g‐C (EYCN) showed a continuous red shift comparison pure from blue green. EYCN composites, as electron donors, can improve degree...

In article number 2002580, Zijian Zheng and co-workers review the recent progress in use of fibrous materials flexible Li–S batteries. Fibrous can function as building blocks for different components batteries such current collectors interfacial layers. They address issues including dendrite formation shuttle effect, enhance mechanical stability each battery component, thereby enabling high-energy, long-lifetime