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Developing a robust artificial intelligence of things (AIoT) system with a self‐powered triboelectric sensor for harsh environment is challenging because environmental fluctuations are reflected in triboelectric signals. This study presents an environmentally robust triboelectric tire monitoring system with deep learning to capture driving information in the triboelectric signals generated from tire‐road...
The electrode buffer layer is crucial for high‐performance and stable OSCs, optimizing charge transport and energy level alignment at the interface between the polymer active layer and electrode. Recently, SnO2 has emerged as a promising material for the cathode buffer layer due to its desirable properties, such as high electron mobility, transparency, and stability. Typically, SnO2 nanoparticle layers...
Thin‐Film Solar Cells
A facile CsF treatment enhances CZTSSe grain growth and phase homogeneity, resulting in effective charge transport and a favorable P‐N junction. This leads to a significant performance enhancement in CZTSSe thin‐film solar cells, increasing efficiency from 8.38% to 10.20%. The CsF‐treated CZTSSe bottom cell is integrated into a mechanically‐stacked perovskite/CZTSSe 4T tandem...
Cu2ZnSn(S,Se)4 (CZTSSe) thin film solar cells are an attractive choice for a bottom cell of the low‐cost and environmental tandem solar cells with perovskite. However, the progress in developing efficient perovskite/CZTSSe tandem solar cells has been hindered by the lack of high performance of the CZTSSe bottom cell. Here, an efficient CZTSSe bottom cell is demonstrated by adopting a facile and effective...
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...
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...
All‐Solid‐State Batteries
In article number 2305758, Sangcheol Nam, Ohmin Kwon, and co‐workers explored the stability of Li10SnP2S12 (LSnPS) at high potential. An LSnPS core‐shell structured cathode material was fabricated on the surface of a high‐capacity electrode using a low‐cost and environmentally friendly mechano‐fusion method. By employing this strategy, an outstanding all‐solid‐state battery...
Recently, sulfide‐based all‐solid‐state batteries (ASSBs) have attracted great attention because of their excellent safety and high energy density. However, by‐products formed from side‐reactions between the oxide‐based cathodes and sulfide‐based solid electrolytes (SEs) increase the interfacial resistance and degrade the cell performance. Suppression of this interfacial resistance is thus critical...
In reticular chemistry, topology is a powerful concept for defining the structures of covalent organic frameworks (COFs). However, due to the lack of diversity in the symmetry and reaction stoichiometry of the monomers, only 5% of the two‐dimensional topologies have been reported to be COFs. To overcome the limitations of COF connectivity and pursue novel topologies in COF structures, two aminal‐linked...
Top‐Emitting Quantum Dot Light‐Emitting Diodes
In article number 2206133, Jaehoon Kim, Kyung‐Tae Kang, and co‐workers present a novel light extraction structure for top‐emitting quantum dot light‐emitting diodes (QLEDs) called RaDiNa. By utilizing molded irregular holes on polydimethylsiloxane (PDMS) made by ZnO nanorods, the authors are able to widen the narrow viewing angle of top‐emitting QLEDs,...
The quantum dot light‐emitting diode (QLED) represents one of the strongest display technologies and has unique advantages like a shallow emission spectrum and superior performance based on the cumulative studies of state‐of‐the‐art quantum dot (QD) synthesis and interfacial engineering. However, research on managing the device's light extraction has been lacking compared to the conventional LED field...
C2+ Products
Electrochemical conversion of CO2 is a promising method to decrease the CO2 level in the atmosphere for relieving the global warming problem. Article number 2205765 by Ho Won Jang, Soo Young Kim, Sang Hyun Ahn, and co‐workers summarizes recent progress in the conversion of CO2 to C2+ products via electrochemical, photochemical, and photoelectrochemical reduction reaction; these are analysed...
Environmental problems such as global warming are one of the most prominent global challenges. Researchers are investigating various methods for decreasing CO2 emissions. The CO2 reduction reaction via electrochemical, photochemical, and photoelectrochemical processes has been a popular research topic because the energy it requires can be sourced from renewable sources. The CO2 reduction reaction...
Two new Y6 derivatives of symmetrical YBO‐2O and asymmetrical YBO‐FO nonfullerene acceptors (NFAs) are prepared with a simplified synthetic procedure by incorporating octyl and fluorine substituents onto the terminal 2‐(3‐oxo‐2,3‐dihydro‐1H‐inden‐1‐ylidene)malononitrile (INCN) moiety. By moving the alkyl substituents on the Y6 core to the terminal INCN moiety, the lowest unoccupied molecular orbital...
The unique biological characteristics and promising clinical potential of extracellular vesicles (EVs) have galvanized EV applications for regenerative medicine. Recognized as important mediators of intercellular communication, naturally secreted EVs have the potential, as innate biotherapeutics, to promote tissue regeneration. Although EVs have emerged as novel therapeutic agents, challenges related...
Silicon monoxide (SiO)‐based materials have great potential as high‐capacity anode materials for lithium‐ion batteries. However, they suffer from a low initial coulombic efficiency (ICE) and poor cycle stability, which prevent their successful implementation into commercial lithium‐ion batteries. Despite considerable efforts in recent decades, their low ICE and poor cycle stability cannot be resolved...
A great deal of research has focused on small‐scale robots for biomedical applications and minimally invasive delivery of therapeutics (e.g., cells, drugs, and genes) to a target area. Conventional fabrication methods, such as two‐photon polymerization, can be used to build sophisticated micro‐ and nanorobots, but the long fabrication cycle for a single microrobot has limited its practical use. This...
Numerous studies have explored new materials for electrocatalysts, but it is difficult to discover materials that surpass the catalytic activity of current commercially available noble metal electrocatalysts. In contrast to conventional transition metal alloys, high‐entropy alloys (HEAs) have immense potential to maximize their catalytic properties because of their high stability and compositional...
To construct a highly efficient photoelectrochemical tandem device with silicon photocathode operating in alkaline conditions, it is desirable to develop stable and active catalysts which enable the photocathode to reliably perform under an alkaline environment. With nanostructured passivation layer and edge‐exposed transition metal disulfides, silicon photocathode provides new opportunities for achieving...
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