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Electronic Skin
In article number 2308127, Qichong Zhang, Nam‐Young Kim, Yang Li, and co‐workers propose a novel all‐fabric bionic (AFB) electronic skin (e‐skin) based on capacitive sensing, which achieves intuition and tactile bimodal sensing based on the fringing and iontronic effects. Assisted by the artificial intelligence‐motivated “brain”, the proposed AFB e‐skin can achieve the efficient perception...
Despite incorporation of organic groups into silica‐based aerogels to enhance their mechanical flexibility, the wide temperature reliability of the modified silicone aerogel is inevitably degraded. Therefore, facile synthesis of soft silicone aerogels with wide‐temperature stability remains challenging. Herein, novel silicone aerogels containing a high content of Si are reported by using polydimethylvinylsiloxane...
Developing electronic skins (e‐skins) with extraordinary perception through bionic strategies has far‐reaching significance for the intellectualization of robot skins. Here, an artificial intelligence (AI)‐motivated all‐fabric bionic (AFB) e‐skin is proposed, where the overall structure is inspired by the interlocked bionics of the epidermis‐dermis interface inside the skin, while the structural design...
Non‐aqueous solvents, in particular N,N‐dimethylaniline (NMP), are widely applied for electrode fabrication since most sodium layered oxide cathode materials are readily damaged by water molecules. However, the expensive price and poisonousness of NMP unquestionably increase the cost of preparation and post‐processing. Therefore, developing an intrinsically stable cathode material that can implement...
Achieving longitudinal doping of specific ions by surface treatment remains a challenge for perovskite solar cells, which are often limited by dopant and solvent compatibility. Here, with the flowing environment created by CsBr colloidal nanocrystals, ion exchange is induced on the surface of the perovskite film to enable the homogeneous distribution of Cs+ and gradient distribution of Br− simultaneously...
Low Coulombic efficiency (CE) and safety issues are huge problems that hinder the practical application of Li metal anodes. Constructing Li host structures decorated with functional species can restrain the growth of Li dendrites and alleviate the great volume change. Here, a 3D porous carbonaceous skeleton modified with rich lithiophilic groups (Zn, ZnO, and Zn(CN)2) is synthesized as a Li host via...
Defect engineering is promising to tailor the physical properties of 2D semiconductors for function‐oriented electronics and optoelectronics. Compared with the extensively studied 2D binary materials, the origin of defects and their influence on physical properties of 2D ternary semiconductors are not clarified. Here, the effect of defects on the electronic structure and optical properties of few‐layer...
The use of photothermal therapy (PTT) with the near‐infrared II region (NIR‐II: 1000–1700 nm) is expected to be a powerful cancer treatment strategy. It retains the noninvasive nature and excellent temporal and spatial controllability of the traditional PTT, and offers significant advantages in terms of tissue penetration depth, background noise, and the maximum permissible exposure standards for...
Photothermal Therapy
With wide spectral absorption and high photothermal conversion efficiency, the photothermal treatment based on 2D MXenes at NIR‐II has significant advantages in biological tissue penetration depth and biocompatibility, which is a promising biomedical treatment. In article number 2305645, Yisen Wang and co‐workers introduced the photothermal properties, conversion mechanism and...
Zn‐based electrochemical energy storage (EES) systems are attracting more attention, whereas their large‐scale application is restricted by the dendrite and parasitic reaction‐caused unstable Zn anodes. Herein, a negatively charged hydrophobic carbon nano‐onion (CNO) interfacial layer is proposed to realize ultrastable and high‐rate Zn anodes, enabling high‐performance Zn‐based EES. For the CNO interfacial...
Topological insulators (TIs) are characterized by a full insulating gap in the bulk and gapless edge or surface states, which have attracted tremendous attention. 2D Bi (110), as a typical TI, is of particular interest due to its low symmetry structure and topologically protected and spin‐momentum‐locked Dirac surface states. However, the material's potential applications are hindered by difficulties...
Piezocatalysis has increasingly gained prominence due to its enormous potential for addressing energy shortages and environmental pollution issues. Nonetheless, the low piezocatalytic activity of state‐of‐the‐art materials seriously inhibits the practical applications of piezocatalysis. Here, it is proposed to greatly enhance the piezocatalytic activity for a perovskite ferroelectric, i.e., Sm‐doped...
Laser‐driven phase transition of 2D transition metal dichalcogenides has attracted much attention due to its high flexibility and rapidity. However, there are some limitations during the laser irradiation process, especially the unsatisfied surface ablation, the inability of nanoscale phase patterning, and the unexploited physical properties of new phase. In this work, the well‐controlled femtosecond...
Electric Double Layer Devices
In article number 2301798, Cheng‐Yan Xu, Yang Li, and co‐workers showcase the structure of electrical double layer at the interface of Li2Al2SiP2TiO13 solid electrolyte and WSe2, emphasizing the interactions between ions and electrons, along with the verification of potential distribution at the 2D/electrolyte interface using atomic force microscope.
The compatibility of crystallinity, stability, and functionality in covalent organic frameworks (COFs) is challenging but significant in reticular chemistry and materials science. Herein, it is presented for the first time a strategy to synthesize directly amino‐functionalized COF with stable benzodiimidazole linkage by regioselective one‐step cyclization and aromatization. Bandrowski's base with...
Electric double layer (EDL) devices based on 2D materials have made great achievements for versatile electronic and opto‐electronic applications; however, the ion dynamics and electric field distribution of the EDL at the electrolyte/2D material interface and their influence on the physical properties of 2D materials have not been clearly clarified. In this work, by using Kelvin probe force microscope...
Although numerous experimental investigations have been carried out on the problem of defect engineering in semiconductor absorbers, the relationship among charge carrier, defects, heterointerfaces, and electromagnetic (EM) wave absorption has not been established systematically. Herein, the new thermodynamic and kinetic control strategy is proposed to establish multiphase TixO2x−1 (1 ≤ x ≤ 6) through...
A Zn anode can offset the low energy density of a flow battery for a balanced approach toward electricity storage. Yet, when targeting inexpensive, long‐duration storage, the battery demands a thick Zn deposit in a porous framework, whose heterogeneity triggers frequent dendrite formation and jeopardizes the stability of the battery. Here, Cu foam is transferred into a hierarchical nanoporous electrode...
A photo‐ and electro‐thermal film can convert sunlight and electricity into heat to solve icing problems. Combination of them provides an efficient strategy for all‐day anti‐/de‐icing. However, only opaque surfaces have been reported, due to the mutual exclusiveness between photon absorption and transmission. Herein, a highly transparent and scalable solution‐processed photo‐electro‐thermal film is...
Nanoporous Materials
In article number 2300697, Li Sheng, Hong Xu, Cheng Wang, Xiangming He, and co‐workers provide a method (i.e. electrospinning) to convert sulfonated polymers into high‐performance lithium battery separators. The nanofibrous Nafion separator swelled in liquid electrolytes has in situ generated nanochannels, efficiently accelerating lithium ion transport.
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