A5031459538- Advancements in Battery Materials
- Supercapacitor Materials and Fabrication
- Advanced Memory and Neural Computing
- Advanced Battery Materials and Technologies
- Magnetic properties of thin films
- Ferroelectric and Negative Capacitance Devices
- Advanced battery technologies research
- Neural Networks and Reservoir Computing
- MXene and MAX Phase Materials
- 2D Materials and Applications
- Perovskite Materials and Applications
- Semiconductor materials and devices
- Quantum and electron transport phenomena
- Electrocatalysts for Energy Conversion
- Physics of Superconductivity and Magnetism
- GaN-based semiconductor devices and materials
- Semiconductor materials and interfaces
- Advanced Sensor and Energy Harvesting Materials
- Theoretical and Computational Physics
- Advanced Photocatalysis Techniques
- Chalcogenide Semiconductor Thin Films
- Optical Systems and Laser Technology
- Gas Sensing Nanomaterials and Sensors
- Magnetic and transport properties of perovskites and related materials
- Topological Materials and Phenomena
Suzhou Institute of Nano-tech and Nano-bionics
2021-2024
Chinese Academy of Sciences
2021-2023
University of Science and Technology of China
2021-2023
Shandong University
2020-2022
State Key Laboratory of Crystal Materials
2020-2022
Wuhan University
2022
University of Messina
2022
Shenzhen Polytechnic
2022
Beijing Normal University
2022
Suzhou Industrial Park Institute of Services Outsourcing
2022
Abstract Advanced Ni//Zn batteries possess great promise that combines battery‐level energy density and capacitor‐level power density. However, the surface chemical reactivity of cathode is generally restricted by active material utilization, leading to an insensitive edge site unsatisfactory capacity. Herein, a simple energy‐saving strategy reported for manipulating bimetallic sulfide nanointerfaces via water invoking interface corrosion achieve 200% increase in capacity electrodes. The...
Abstract Photogating effect based on vertical structure of 2D materials allows for the realization a highly sensitive photodetector. A and broad‐spectrum (365–965 nm) photodetector is reported indium selenide (InSe)/rhenium disulfide (ReS 2 ) heterostructure, where top layer InSe serves as photogate to regulate channel current, enabling large photoconductive gain 10 6 . The detectivity can reach 6.51 × 13 Jones, making this one highest values among transition metal dichalcogenide...
A tin-based sulfide composite with heterojunctions and sulfur vacancies induced by phosphorus doping was successfully synthesized. The obtained SnS 2− x P /RGO electrodes exhibit superior high-rate, long-term cycling stability for both LIBs SIBs.
Ambipolar photoresponsivity mainly originates from intrinsic or interfacial defects. However, these defects are difficult to control and will prolong the response speed of photodetector. Here, we demonstrate tunable ambipolar in a photodetector built vertical p-WSe2/n-InSe heterostructures with photogating effect, exhibiting ultrahigh -1.76 × 104 5.48 A/W. Moreover, possesses broadband photodetection (365-965 nm), an specific detectivity (D*) 5.8 1013 Jones, external quantum efficiency 1.86...
Carbon nanomaterials have elicited much research interest in the energy storage field, but most of them cannot be used at high temperatures. Thus, a supercapacitor with and desired stability temperatures is urgently required. Herein, BCN nanotubes (BCNNTs) excellent performance are generated on carbon fibers by optimizing ratio B N. The nanotubes' morphology can effectively alleviate structural damage caused rapid adsorption/desorption electrolyte during long-time charge/discharge cycles...
To obtain high reversible capacity and long-term cycling performance in Sn-based phosphide anodes for lithium-/sodium-ion batteries (LIBs/SIBs), the tin nanoplate with multiphase grown on reduced graphene oxide (SnxPy/RGO) has been synthesized through phosphorization process. SnP0.94/RGO SnxPy/RGO can be accurately obtained by controlling heating rate amount of phosphorus source. Benefiting from synergistic effect, structural stability was improved, along reversibility conversion reactions...
Spin-torque diodes (STDs) offer the possibility of using spin torque to generate rectification voltage with promising applications in microwave detecting, energy harvesting, and neuromorphic computing. Here, we demonstrate a highly sensitive STD ultralow current density based on magnetic tunnel junction perpendicular anisotropy. At zero field, high sensitivity exceeding 3785 V/W is obtained low −20 μA, corresponding ∼105 A/cm2, which one order lower than previously reported. When weak...
Bio-inspired neuromorphic computing has aroused great interest due to its potential realize on-chip learning with bio-plausibility and energy efficiency. Realizing spike-timing-dependent plasticity (STDP) in synaptic electronics is critical toward bio-inspired systems. Here, we report on stochastic artificial synapses based nanoscale magnetic tunnel junctions that can implement STDP harnessing magnetization switching. We further demonstrate both the magnitude temporal requirements for be...
Based on the synergistic effect, a branch–leaf structure electrode under high mass loading is constructed to improve rate performance and capacitance of further supercapacitor device with energy achieved.
Artificial neural networks (ANNs) based on the microwave properties of magnetic tunnel junctions (MTJs) have an advantage in recognizing rf signals without digital-to-analog conversion. However, so far there has been no good way to exploit frequency multiplexing MTJ-based ANNs. To this end, authors explore changing perpendicular anisotropy between a Co-Fe-B free layer and MgO barrier. Their spintronic synapse with adjustable positive negative weights can classify accuracy exceeding 96%,...
The carbon fiber/metal oxide/metal oxynitride layer sandwich structure is constructed in the electrode to form a mini-plate capacitor. High dielectric constant metal oxides act as increase their capacitance.
Cd x Zn 1− S-B with a twin boundary structure are investigated as anode materials for LIBs/SIBs, and high-rate long-term cycling stability is delivered.
Carbon materials have long been extensively used in supercapacitors. However, the practical application of carbon‐based supercapacitors has severely limited by their low charge storage capacity. Rational construction carbon with heteroatom doping and high specific surface area can effectively improve performance Therefore, a self‐supported fluorine‐doped boron carbonitride (F‐BCN) aerogel material for is designed. The introduction heteroatoms increases defect density skeleton, expands...
With the arrival of “von Neumann bottleneck,” neuromorphic systems are receiving a lot attention from scholars as an innovative technology by mimicking massive parallelism and low‐power operation human brain. Herein, floating‐gate‐like device constructed InSe/hBN/O 2 ‐hBN van der Waals heterostructure, where defective O plays central role to trap charges, is proposed. This well‐designed proved realize synaptic functions under UV laser irradiation, such short‐term plasticity (STP), long‐term...
We investigate the highly sensitive spin torque diode (STD) effect in a magnetic tunnel junction (MTJ) with an in-plane polarizer and free layer. Under injection locking mechanisms, high rectification voltage of 12 mV is obtained input radio frequency power 1 μW under direct current bias weak field, corresponding to sensitivity 000 mV/mW. In addition, we use nonlinear characteristics STD mimic neuron ReLU-like activation function perform recognition handwritten digits Mixed National...
The stochastic magnetic tunnel junction is an emerging device in neuromorphic computing, but controlling such a random system with high energy efficiency and flexibility remains challenge. authors propose spintronic neuron switching behavior that modulated by microwave signal. Their approach improves the training speed performance of for benchmark task recognizing handwritten digits, compared to conventional software-based sigmoidal neural network. This study advances quest create flexible,...
Abstract Spin‐orbit‐torque (SOT) offers a highly attractive perspective for manipulating magnetization dynamics in magnetic nanostructures. SOT is been observed and studied various systems. However, limited by the efficiency, SOT‐induced switching of ultrahard ferromagnet still extremely difficult further improvement efficiency requested. Here, reported chemically disordered soft Fe 0.5 Pt Pt/Fe bilayers. Due to magnetization‐strengthened spin Hall effect, damping‐like torque conductivity...
Abstract van der Waals heterostructures (vdWHs) based on atomically two-dimensional materials have gained extensive attention due to their great potential in the new era of next-generation optoelectronics. Most reported photodetectors exhibit type-II band alignment and photodetection performance is often limited by either low photoresponsivity or high dark current. However, type-Ⅲ vdWHs with broken gaps are still very rare, which limits development application (2D) fields photodetector....
Neuroscience studies have shown that population coding in biological systems can carry out resilient information processing with ensemble of neurons. Such strategy is valuable for the future development electronics, particularly as downscaling transistors reaching atomic limits and causing problems large device-to-device variability even device failure. In this work, we propose nanoscale spin-torque diode (STD) based on a magnetic tunnel junction be used to implement coding. We also...