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Excited-State Carrier Dynamics in Semiconducting Heterostructures from Self-Sorted NIR Active Dyes.
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January 2025
Department of Polymers & Functional Materials, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, Telangana, 500007, India.
Heterostructures comprise two or more different semiconducting materials stacked either as co-assemblies or self-sorted based on their dynamics of aggregates. However, self-sorting in heterostructures is rather significant in improving the short exciton diffusion length and charge separation. Despite small organic molecules being known for their self-sorting nature, macrocyclic are hitherto unknown owing to unrestrained assemblies from extended π-conjugated systems.
View Article and Find Full Text PDFHuman-Inspired Control of a Whip: Preparatory Movements Improve Hitting a Target.
Proc IEEE RAS EMBS Int Conf Biomed Robot Biomechatron
September 2024
Department of Biology, Northeastern University, Boston, MA, USA.
Manipulating flexible and underactuated objects, such as a whip, remains a significant challenge in robotics. Remarkably, humans can skillfully manipulate such objects to achieve tasks, ranging from hitting distant targets to extinguishing a cigarette's in someone's mouth with the tip of a whip. This study explored this problem by constructing and modeling a 25-degree-of-freedom whip.
View Article and Find Full Text PDFGuanine-based spin valve with spin rectification effect for an artificial memory element.
Heliyon
January 2025
National Institute of Materials Physics, 077125 Magurele, Ilfov, Romania.
Non-volatile electronic memory elements are very attractive for applications, not only for information storage but also in logic circuits, sensing devices and neuromorphic computing. Here, a ferroelectric film of guanine nucleobase is used in a resistive memory junction sandwiched between two different ferromagnetic films of Co and CoCr alloys. The magnetic films have an in-plane easy axis of magnetization and different coercive fields whereas the guanine film ensures a very long spin transport length, at 100 K.
View Article and Find Full Text PDFPhotocatalytic CO reduction of Ag/AgS/TiCT heterojunctions with enhanced interfacial charge transfer.
Nanoscale Adv
December 2024
Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University Nanchang 330063 P. R. China.
Photocatalytic reduction of CO to produce organic fuels is a promising strategy for addressing carbon reduction and energy scarcity. Transition metal carbides (TiCT ) are of particular interest due to their unique layered structures and excellent electrical conductivity. However, the practical application of TiCT is limited by the poor separation efficiency of photogenerated charge carriers and the low migration ability of photogenerated electrons.
View Article and Find Full Text PDFUnraveling climate change-induced compound low-solar-low-wind extremes in China.
Natl Sci Rev
January 2025
College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.
China's pursuit of carbon neutrality targets hinges on a profound shift towards low-carbon energy, primarily reliant on intermittent and variable, yet crucial, solar and wind power sources. In particular, low-solar-low-wind (LSLW) compound extremes present a critical yet largely ignored threat to the reliability of renewable electricity generation. While existing studies have largely evaluated the impacts of average climate-induced changes in renewable energy resources, comprehensive analyses of the compound extremes and, particularly, the underpinning dynamic mechanisms remain scarce.
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