A5100761560- 2D Materials and Applications
- MXene and MAX Phase Materials
- Advanced Memory and Neural Computing
- Transition Metal Oxide Nanomaterials
- Surface Modification and Superhydrophobicity
- Graphene research and applications
- Gas Sensing Nanomaterials and Sensors
- Electrocatalysts for Energy Conversion
- Ferroelectric and Negative Capacitance Devices
- ZnO doping and properties
- Advanced Sensor and Energy Harvesting Materials
- Perovskite Materials and Applications
- Advanced Photocatalysis Techniques
- Advanced battery technologies research
- High voltage insulation and dielectric phenomena
- Advanced ceramic materials synthesis
- Advanced materials and composites
- Advanced Materials and Mechanics
- Topic Modeling
- Conducting polymers and applications
- Metal Alloys Wear and Properties
- Ga2O3 and related materials
- Advanced Cellulose Research Studies
- Coal and Coke Industries Research
- Nuclear materials and radiation effects
Ningbo No.6 Hospital
2024
Tsinghua University
2019-2024
National University of Defense Technology
2024
State Key Laboratory of New Ceramics and Fine Processing
2019-2023
Jilin Agricultural University
2023
Southwest University of Science and Technology
2009-2021
China Academy of Engineering Physics
2009-2021
Fujian University of Technology
2020
Henan University
2015-2016
Taiyuan Iron and Steel Group (China)
2006
Abstract Designing cost-effective and high-efficiency catalysts to electrolyze water is an effective way of producing hydrogen. Practical applications require highly active stable hydrogen evolution reaction working at high current densities (≥1000 mA cm −2 ). However, it challenging simultaneously enhance the catalytic activity interface stability these catalysts. Herein, we report a rapid, energy-saving, self-heating method synthesize Mo 2 C/MoC/carbon nanotube by ultrafast heating...
As essential units in an artificial neural network (ANN), synapses have to adapt various environments. In particular, the development of synaptic transistors that can work above 125 °C is desirable. However, it challenging due failure materials or mechanisms at high temperatures. Here, we report a transistor working hundreds degrees Celsius. It employs monolayer MoS2 as channel and Na+-diffused SiO2 ionic gate medium. A large on/off ratio 106 be achieved 350 °C, 5 orders magnitude higher...
Synaptic devices based on 2D-layered materials have emerged as high-efficiency electronic synapses and neurons for neuromorphic computing. Lateral 2D synaptic the advantages of multiple functionalities by responding to diverse stimuli, but they consume large amounts energy, far more than human brain. Moreover, current lateral employ several mechanisms conductive filaments grain boundaries (GBs), their formation is random difficult control, also hindering practical applications. Here,...
Structural asymmetry of materials plays a crucial role in developing multipurpose devices. Layered metallic transition metal dichalcogenides (MTMDCs) have been proposed as promising electronics. However, they are still subject to native surface oxidation, limiting their practical applications. Combination protection and oxidation MTMDCs will create asymmetric structures for devices but has yet be explored. Here, we report bifunctional NbS2-based vertical heterostructure derived from...
Fe-(NiS<sub>2</sub>/MoS<sub>2</sub>)/CNT serves as an active and stable hybrid-electrocatalyst for overall water splitting in alkali the HER a pH-universal environment.
Photodetectors based on two-dimensional (2D) transition metal dichalcogenides (TMDs) can only be operated in a single photovoltaic or photoconductive mode, showing either high detectivity responsivity, but not both. An effort to develop photodetector that dynamically switch its working mode is indispensable for practical applications. In this article, we demonstrate performance, phase-transition modulated, dual-mode WSe2/VO2 heterojunction. Enabled by the insulator-to-metal of VO2,...
Abstract The rise of twistronics has increased the attention community to twist-angle-dependent properties two-dimensional van der Waals integrated architectures. Clarification relationship between twist angles and interlayer mechanical interactions is important in benefiting design twisted structures. However, current methods have critical limitations quantitatively probing twist-angle dependence monolayer limits. Here we report a nanoindentation-based technique shearing-boundary model...
Nanoscale electronic devices that can work in harsh environments are high demand for wearable, automotive, and aerospace electronics. Clean defect-free interfaces of vital importance building nanoscale harsh-environment-resistant devices. However, current subject to failure these environments, especially at defective electrode-channel interfaces. Here, MoS2 transistors developed by engineering with an all-transfer van der Waals electrodes. The delivered defect-free, graphene-buffered...
Vanadium dioxide (VO2), with well-known metal-to-insulator phase transition, has been used to realize intriguing smart functions in photodetectors, modulators, and actuators. Wafer-scale freestanding VO2 (f-VO2) films are desirable for integrating other materials into multifunctional devices. Unfortunately, their preparation yet be achieved because the wafer-scale etching needs ultralong time damages amphoteric whether acid or alkaline etchants. Here, we f-VO2 by a nano-pinhole...
A high-valence-cation doped MoS<sub>2</sub>/MoO<sub>2</sub> hetero-electrocatalyst incorporated in carbon nanotube foam by a one-step synthesis synergistically enhances the HER activity.
Vanadium dioxide (VO2) is a strongly correlated electronic material and has attracted significant attention due to its metal-to-insulator transition diverse smart applications. Traditional synthesis of VO2 usually requires minutes or hours global heating low oxygen partial pressure achieve thermodynamic control the valence state. Further patterning through series lithography etching processes may inevitably change surface valence, which poses great challenge for assembly micro- nanoscale...
Van der Waals heterojunctions based on transition metal dichalcogenides (TMDs) show promising potential in optoelectronic devices, due to the ultrafast separation of photoexcited carriers and efficient generation photocurrent. Herein, this study demonstrated a high-responsivity photovoltaic photodetector MoTe2/MoSe2 type-II heterojunction. Due interlayer built-in potential, heterojunction shows obvious behavior its photoresponse can be tuned by gate voltage ultrathin thickness This...
Thin films with large compressive residual stress and low interface adhesion can buckle delaminate from relatively rigid substrates, which is a common failure mode of film/substrate interfaces. Current studies mainly focused on the geometry various buckling patterns related physical origins based static point view. However, fundamental understanding dynamic propagation buckles, particularly for complicated web remains challenging. We adopt strained two-dimensional MoS2 thin to study...
Solitary waves are unique in nonlinear systems, but their formation and propagation the fluid-structure interactions have yet to be further explored. As a typical system, buckling of solid thin films is fundamentally related film-substrate interface that vulnerable environments, especially when fluids exist. In this work, we report an anomalous, solitary-wave-like blister (SWLB) mode MoS2 humid environment. Unlike most common telephone-cord web deformation, SWLB propagates forward like...
Abstract Magnetron sputtering is an alternative approach to prepare flexible copper clad laminates because of low cost and thin laminate thickness. However, Cu film has poor adhesion when directly deposited on polymer substrates, imposing certain limits the use magnetron technique. This work aims improve between substrate. In this work, we succeeded improved substrates by introducing different metal interlayers into polymer/Cu interfaces. It was found that films with Ni interlayer have best...
We have designed and synthesized a carbazole-based fluorescent probe (CZ-Nm) for the specific recognition of GSH over Cys Hcy. The is almost non-fluorescent owing to photoinduced electron transfer (PET) process from carbazole fluorophore nitroolefin moiety. Upon treatment with GSH, Michael addition double bond moiety, shows fluorescence enhancement absorption change. CZ-Nm displays desirable properties such as acting "naked eye" probe, wide linear range 0–0.01 M, high sensitivity, strong...
A superhydrophobic material was prepared by a simple and easily accessed sol-gel method using epoxy resin (E-51) γ-aminopropyltriethoxysilane (KH-550) as the precursors, aqueous ammonia (NH4OH) catalyst hydrogenated silicone oil (PMHS) hydrophobic modifier, then pelleting final product. The morphologies, surface chemical properties thermal stability of bulk materials were characterized scanning electron microscopy, Fourier infrared spectrometry analyzer. repairability as-prepared also...
Dynamic engineering of buckling deformation is vital importance as it provides multiphase modulation thin film devices. In particular, dynamic switch buckles between one-dimensional (1D) and two-dimensional (2D) configurations in a single system on rigid substrates intriguing but very challenging. The current approach to changing configuration mainly achieved by varying the built-in stress at film-substrate interface, difficult realize substrates. Herein, we report MoS2 films humidity-tuned...
Scaling up the chemical vapor deposition (CVD) of monolayer transition metal dichalcogenides (TMDCs) is in high demand for practical applications. However, CVD-grown TMDCs on a large scale, there are many existing factors that result their poor uniformity. In particular, gas flow, which usually leads to inhomogeneous distributions precursor concentrations, has yet be well controlled. this work, growth uniform MoS2 scale by delicate control flows precursors, realized vertically aligning...