Sustainable high-voltage TENG (SH-TENG) based on charge accumulation strategy can provide an unprecedented high voltage output.

TENG-based electro-tactile system has the advantages of simple system, low cost, and zero power consumption.

Abstract Designing new acceptors is critical for intrinsically stretchable organic solar cells (IS‐OSCs) with high efficiency and mechanical robustness. However, nearly all polymer exhibit limited high‐performance small molecular are very brittle. In this regard, we select thienylene‐alkane‐thienylene (TAT) as the conjugate‐break linker synthesize four dimerized by regulation of connecting sites halogen substitutions. It found that substitutions considerably impact overall electronic...

Triboelectric nanogenerators (TENGs) have been widely applied for energy harvesting and self-powered sensing, whereas smart deformable materials can be combined with the TENG to acquire a more intelligent self-adaptive system. Here, based on vapor-driven actuation material of perfluorosulfonic acid ionomer (PFSA), we propose type humidity-responsive TENG. The integrated array automatically bend desired angles in response different humidity conditions, thus, it effectively collect from both...

Abstract Wearable electronics with miniaturization and high-power density call for devices advanced thermal management capabilities, outstanding flexibility, excellent permeability. However, it is difficult to achieve these goals simultaneously due the conflict between high conductivity permeability flexibility. Here, we report an approach fabricate flexible, breathable composites capability by coating boron nitride nanosheets (BNNSs) layer on grids of patterned electrospun thermoplastic...

Abstract The miniaturization, integration, and high data throughput of electronic chips present challenging demands on thermal management, especially concerning heat dissipation at interfaces, which is a fundamental scientific question as well an engineering problem—a death problem called in semiconductor industry. A comprehensive examination interfacial resistance has been given from physics perspective 2022 Review Modern Physics . Here, we provide detailed overview materials perspective,...

Microfluidic deprotonation approach is proposed to realize continuous, scalable, efficient, and uniform production of aramid nanofibers (ANFs) by virtue large specific surface area, high mixing efficiency, strong heat transfer capacity, narrow residence time distribution, mild laminar-flow process, amplification-free effect the microchannel reactor. By means monitoring capabilities endowed transparency microchannel, kinetic exfoliation process original particles in situ observed...

Abstract Efficient thermal management has become one of the most critical issues electronics because high heat flux generated from highly integrated, miniaturized, and increased power. Here we report flexible composites with aligned overlapping interconnected boron nitride nanosheets (BNNSs) assembled in wrinkle structures. Besides in-plane conductivity more than 26.58 W m −1 K , such structure rendered enhanced through-plane conduction along increasing pre-stain. As interface materials...

Abstract The development of organic solar cells (OSCs) with high efficiency and stability is highly desirable to facilitate its commercial applications. Although dimeric acceptors distinctive advantages have been widely studied, high‐performance binary OSCs based on such molecules rarely achieved. In this work, a new acceptor (DY‐FL) constructed by simultaneously optimizing the linking sites units, as well building blocks. Thanks effective molecular design, DY‐FL provides improved stacking...

Polymer semiconductors have been widely studied as an important component of stretchable electronic devices. However, most polymer suffer from different degrees charge mobility degradation at high strain. Here, we report a novel side chain engineering strategy to realize stretch-induced enhancement molecular orientation and transport in donor–acceptor conjugated polymers. Specifically, hybrid siloxane-based chains wifth silicon lengths were grafted onto backbone...

Abstract Aerogels with ultrahigh porosity and large specific surface area have demonstrated great potential for capturing volatile organic compounds (VOCs). Especially, aerogel fiber aggregates macropores formed by overlapping fibers mesopores in the might realize fast sorption kinetics high capacity simultaneously. However, how to develop fabrication large‐scale production of remains a challenge. Herein, generic sol‐gel centrifugal spinning (SCS) strategy rate capable reaching 700 m min −1...

Abstract The sensor devices based on triboelectric nanogenerator (TENG) have been proved to both high sensitivity and good self‐powered capability. Inspired by the cockroach antennae, a bionic‐antennae‐array (BAA) working principle of TENG is proposed for identifying noncontact motions data processing module specially designed outputting electrostatic signal microcontroller unit (MCU). Based amplifying effect antennae array, detected maximum distance this BAA can reach 180 mm with...

The development of intrinsically stretchable n-type polymer semiconductors is highly desirable for various wearable and implantable electronics. However, very few studies have reported high-performance conjugated polymers by molecular engineering. Herein, high electron mobility preservation under stretch-strains achieved changing the type grafted side chains as well increasing density chains. A series bis(2-oxoindolin-3-ylidene)-benzodifuran-dione (BIBDF)-based with different including alkyl...

Highly sensitive ethanol sensors have been widely utilized in environmental protection, industrial monitoring, and drink-driving tests. In this work, a fully self-powered detector operating at room temperature has developed based on triboelectric nanogenerator (TENG). The gas-sensitive oxide semiconductor is selected as the sensory component for detection, while resistance change of can well match “linear” region load characteristic curve TENG. Hence, output signal TENG directly reveal...

Solar steam generation, which utilizes solar heat to evaporate water, has been considered a promising technology produce clean water. Meanwhile, the water evaporation process along microchannels can be also utilized generate electricity. Here, based on piece of multiwalled carbon nanotube (CNT)-modified woodblocks, we proposed CNTs/wood composite nanogenerator both and This hybridized system achieve maximum solar-to-vapor conversion efficiency obtained in CNT wood up 77.4% under 1 sun...

Open AccessCCS ChemistryRESEARCH ARTICLES30 Jun 2024Molecular Skeletons Modification Induces Distinctive Aggregation Behaviors and Boosts the Efficiency Over 19% in Organic Solar Cells Hanjian Lai, Xue Yongwen Lang, Yongmin Luo, Liang Han, Yulin Zhu, Shilong Xiong, Xiangyu Shen, Yafei Ding, jiaying Wu, Gang Li Feng He Lai , Lang Luo Han Zhu Xiong Shen Ding Wu https://doi.org/10.31635/ccschem.024.202404482 SectionsSupplemental MaterialAboutPDF ToolsAdd to favoritesDownload CitationsTrack...

Thermal management of flexible/stretchable electronics has been a crucial issue. Mass supernumerary thermal heat is created in the repetitive course deformation because large nanocontact resistance between electric conductive fillers, as well interfacial fillers and polymer matrix. Here, we report stretchable thermoplastic polyurethane (TPU)-boron nitride nanosheet (BNNS) composite film with high in-plane conductivity based on an air/water (AWI) assembly method. In addition to rigid devices,...

A series of conjugated polymers on the basis diketopyrrolopyrrole and thienothiophene with different lengths linear hybrid siloxane-terminal side chains were designed synthesized. The number silicon atoms in was 3, 5, 7 (PTDPPTT-Si-3, PTDPPTT-Si-5, PTDPPTT-Si-7, respectively, two accompanying reference polymers, PTDPPTT-Ref-1 PTDPPTT-Ref-2). Compared PTDPPTT-Si-3, PTDPPTT-Si-5 PTDPPTT-Si-7 had longer groups, which allowed them to maintain higher solution processability excellent mobilities...

Open‐shell radical materials, which are characterized by unpaired electrons, have led to revolutionary breakthroughs in material science due their unique optoelectronic properties. However, the involvement of organic radicals photodynamic therapy (PDT) has rarely been reported or discussed. This work studies two photosensitizer analogs. 4AM‐OS with extended π‐conjugation exhibits open‐shell characters and enhanced type‐I activity compared closed‐shell 2AM‐CS. displays thermally accessible...

Abstract Intrinsically stretchable organic solar cells (IS‐OSCs) are emerging as promising candidates for powering next‐generation wearable electronics. However, developing molecular design strategies to achieve both high efficiency and mechanical robustness in IS‐OSCs remains a significant challenge. In this work, we present novel approach by synthesizing dimerized electron acceptor (DY‐FBrL) that enables rigid OSCs with power conversion (PCE) of 18.75 % crack‐onset strain (COS) 18.54 %....

Abstract Intrinsically stretchable organic solar cells (IS‐OSCs) are emerging as promising candidates for powering next‐generation wearable electronics. However, developing molecular design strategies to achieve both high efficiency and mechanical robustness in IS‐OSCs remains a significant challenge. In this work, we present novel approach by synthesizing dimerized electron acceptor (DY‐FBrL) that enables rigid OSCs with power conversion (PCE) of 18.75 % crack‐onset strain (COS) 18.54 %....