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Mechanically robust and stretchable organic solar cells plasticized by small-molecule acceptors.
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January 2025
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China.
Emerging wearable devices would benefit from integrating ductile photovoltaic light-harvesting power sources. In this work, we report a small-molecule acceptor (SMA), also known as a non-fullerene acceptor (NFA), designed for stretchable organic solar cell (-OSC) blends with large mechanical compliance and performance. Blends of the organosilane-functionalized SMA BTP-Si4 with the polymer donor PNTB6-Cl achieved a power conversion efficiency (PCE) of >16% and ultimate strain (ε) of >95%.
View Article and Find Full Text PDFBio-Inspired Highly Stretchable and Ultrafast Autonomous Self-Healing Supramolecular Hydrogel for Multifunctional Durable Self-Powered Wearable Devices.
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January 2025
Institute of Biomass and Function Materials & National Demonstration Centre for Experimental Light Chemistry Engineering Education, College of Bioresources Chemistry and Materials Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, P. R. China.
As skin bioelectronics advances, hydrogel wearable devices have broadened perspectives in environment sensing and health monitoring. However, their application is severely hampered by poor mechanical and self-healing properties, environmental sensitivity, and limited sensory functions. Herein, inspired by the hierarchical structure and unique cross-linking mechanism of hagfish slime, a self-powered supramolecular hydrogel is hereby reported, featuring high stretchability (>2800% strain), ultrafast autonomous self-healing capabilities (electrical healing time: 0.
View Article and Find Full Text PDFHighly stretchable, conductive, and self-adhesive starch-based hydrogel for high-performance flexible electronic devices.
Carbohydr Polym
March 2025
College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Key Laboratory of Organosilicon Material Technology, Hangzhou Normal University, Zhejiang Province, Hangzhou 311121, Zhejiang, People's Republic of China. Electronic address:
To achieve the green and sustainable development of environment, biocompatible hydrogels with exceptional ionic conductivity and flexibility are highly desired for intelligent and wearable sensors. However, it remains a great challenge to obtain biopolymer hydrogel-based sensors with high transparency, excellent mechanical properties, and good adhesion ability simultaneously. Herein, starch/polyacrylamide double-network hydrogel is achieved to endow the multifunctionality of traditional hydrogel sensor.
View Article and Find Full Text PDF3D printable and myoelectrically sensitive hydrogel for smart prosthetic hand control.
Microsyst Nanoeng
January 2025
Shien-Ming Wu School of Intelligent Engineering, South China University of Technology, Guangzhou, 511442, P. R. China.
Surface electromyogram (sEMG) serves as a means to discern human movement intentions, achieved by applying epidermal electrodes to specific body regions. However, it is difficult to obtain high-fidelity sEMG recordings in areas with intricate curved surfaces, such as the body, because regular sEMG electrodes have stiff structures. In this study, we developed myoelectrically sensitive hydrogels via 3D printing and integrated them into a stretchable, flexible, and high-density sEMG electrodes array.
View Article and Find Full Text PDFHighly Conductive, Ultratough, and Adhesive Eutectogels with Environmental Tolerance Enabled by Liquid Metal Composites.
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January 2025
School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China.
Eutectogels are recently emerged as promising alternatives to hydrogels owing to their good environmental stability derived from deep eutectic solvents (DES). However, construction of competent eutectogels with both high conductivity and mechanical toughness is still difficult to achieve yet highly demanded. In this work, new LMNP-PEDOT-CMC-AA (LPCA) eutectogels are prepared using acrylic acid (AA) and carboxymethylcellulose sodium (CMC) as polymeric networks, liquid metal nanoparticle-poly(3,4-ethylenedioxythiophene) (LMNP-PEDOT) are added as multifunctional soft fillers.
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