A5101938531- Advanced Memory and Neural Computing
- Ferroelectric and Negative Capacitance Devices
- Semiconductor materials and devices
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Advanced Photocatalysis Techniques
- Proteins in Food Systems
- Neuroscience and Neural Engineering
- Microencapsulation and Drying Processes
- Electronic and Structural Properties of Oxides
- Gold and Silver Nanoparticles Synthesis and Applications
- Nanocluster Synthesis and Applications
- Crystallization and Solubility Studies
- Silicon Carbide Semiconductor Technologies
- Protein Hydrolysis and Bioactive Peptides
- X-ray Diffraction in Crystallography
- Advancements in Semiconductor Devices and Circuit Design
- Food Chemistry and Fat Analysis
- CCD and CMOS Imaging Sensors
- Advanced biosensing and bioanalysis techniques
- Advanced Sensor and Energy Harvesting Materials
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Advanced Nanomaterials in Catalysis
- Vacuum and Plasma Arcs
Fuzhou University
2019-2025
Zhejiang University of Technology
2025
China Resources (China)
2020-2024
Chongqing University
2024
Wuhan Textile University
2022
Zhejiang Sci-Tech University
2021-2022
National Institute of Measurement and Testing Technology
2020-2021
State Key Laboratory of Food Science and Technology
2016-2020
Jiangnan University
2016-2020
Jimei University
2020
Neuromorphic computing is an emerging paradigm beyond the conventional digital von Neumann computation. An oxide-based resistive switching memory engineered to emulate synaptic devices. At device level, gradual resistance modulation characterized by hundreds of identical pulses, achieving a low energy consumption less than 1 pJ per spike. Furthermore, stochastic compact model developed quantify dynamics and variation. system performance artificial visual on image orientation or edge...
We report a versatile strategy based on the use of multifunctional mussel-inspired polydopamine for constructing well-defined single-nanoparticle@metal–organic framework (MOF) core–shell nanohybrids. The capability to form robust conformal coating colloidal substrates any composition and direct heterogeneous nucleation growth MOFs makes it possible customized structural integration broad range inorganic/organic nanoparticles functional MOFs. Furthermore, unique redox activity adds additional...
A postsynthesis assembly approach, an ex situ ligand exchange route, was developed for fast (within 2 h) and high loading (34% coverage) deposition of CdSe QDs on TiO2 films. With the combination high-quality QD sensitizers effective technique, a record photovoltaic performance with efficiency 5.4% observed resulting cell device.
Recyclable nanocatalysts of core–shell bimetallic nanocrystals are developed through polydopamine coating-directed one-step seeded growth, interfacial assembly, and substrate-immobilization Au@Ag nanocrystals. This strategy provides new opportunities to design optimize heterogeneous with tailored size, morphology, chemical configuration, supporting substrates for metal-catalyzed reactions. As a service our authors readers, this journal information supplied by the authors. Such materials peer...
We report a new strategy to synthesize core–shell metal nanoparticles with an interior, Raman tag-encoded nanogap by taking advantage of nanoparticle-templated self-assembly amphiphilic block copolymers and localized precursor reduction redox-active polymer brushes. Of particular interest for surface-enhanced scattering (SERS) is that the size can be tailored flexibly, sub-2 nm leading highest SERS enhancement. Our results have further demonstrated surface functionalization nanogapped Au...
It is commonly observed that the "traditional" aqueous solution route to prepare CdTe nanocrystals (NCs) using thiol ligands as capping reagents usually very time-consuming and luminescent properties are poor in deep red near infrared (NIR) emission window. Herein, we present an ultrafast facile phase under atmospheric pressure high-quality green- NIR-emitting NCs with mercaptopropionic acid reagent. In contrast previous reports, red- efficiency up 50% can be obtained within 1 h reflux time...
We report the use of metal oxide resistive switching memory (RRAM) as synaptic devices for a neuromorphic visual system. At device level, we experimentally characterized gradual resistance modulation RRAM by hundreds identical pulses. As compared with phase change (PCM) reported recently in [1,2], >100×-1000× energy consumption reduction was achieved (<;1 pJ per spike). Based on experimental results, developed stochastic model to quantify dynamics. system simulated performance image...
In this letter, a significantly improved uniformity of device parameters (for cycle-to-cycle within one and device-to-device uniformity), such as set voltage, reset HRS LRS resistance distributions, is successfully demonstrated on HfO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</sub> /TiO multilayer (ML)-based resistive switching devices, compared with -based single-layer device. addition, the reported ML devices are free from forming...
We report, for the first time, three types of endurance failure behaviors in TMO based RRAM. New physical mechanisms are proposed to clarify origins these failures. A physically-based optimized switching mode is developed improve TMO-RRAM. significantly enhanced >;10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">9</sup> cycles was demonstrated HfO <sub xmlns:xlink="http://www.w3.org/1999/xlink">x</sub> /TiO /HfO devices.
Hardware implementation of neuromorphic computing is attractive as a paradigm beyond the conventional digital computing. In this work, we show that SET (off-to-on) transition metal oxide resistive switching memory becomes probabilistic under weak programming condition. The variability binary synaptic device implements stochastic learning rule. Such was statistically measured and modeled for simulation winner-take-all network competitive learning. illustrates with such learning, orientation...
We report the development of a highly efficient photocatalytic system by immobilizing high-quality CdS quantum dots and dendritic Pt nanocrystals on thiol-functionalized graphene substrates. have demonstrated that use QDs with compact sizes leads to dramatically enhanced performance in comparison their bulk counterparts. Our design allows for systematic examination impact QD loading, morphology, surface coating nanocrystal cocatalyst H2 evolution activity. It was found CdS–Pt binary has high...
Perovskite quantum dots (PQDs) have attracted more and attention in light-emitting diode (LED) devices due to their outstanding photoelectric properties. Surface ligands not only enable size control of but also enhance optoelectronic performance. However, the efficiency exciton recombination PQDs is often hindered by desorption dynamics surface ligands, leading suboptimal electrical In this study, sodium methanesulfonate (NaMeS) was successfully introduced during PQD synthesis ligand...
Surface passivation of nanocrystals with suitable organic or inorganic materials is key to improving the photoluminescence (PL) efficiency and stability nanocrystals. Although hot-injection organometallic approach a powerful tool achieve different kinds core/shell structures, direct synthesis such structures in aqueous phase, which bears many advantages as biocompatibility, water-solubility, environment-friendliness, cheapness, less often reported. Herein we present facile for one-pot...
In this letter, the temperature instability of HfO <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</i> -based resistive switching memory is investigated. It observed that with increase high (up to 100 °C in work), leakage current high-resistance state would increase, and set/reset voltages decrease. addition, multibit exhibited at room might not be retained temperature. All these phenomena can correlated oxygen-vacancy-related trap formation...
Unlike that for cadmium based nanocrystals, little research has been found on the synthesis of UV-blue-emitting ZnSe QDs with photoluminescence (PL) quantum yield (QY) superior to 50%. In this article, high-quality water-dispersible ZnSe/ZnS core/shell nanocrystals have prepared in aqueous media. The epitaxial overgrowth ZnS shell was carried out at 90 °C a reaction flask consisting precursor compounds (zinc acetae as zinc resource and thiourea sulfur resource), together as-prepared core...
Atomic layer deposited (ALD) <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex Notation="TeX">$\hbox{HfO}_{2}$</tex></formula> resistive-switching random access memory devices with high uniformity, self-compliance, and forming-free behavior are demonstrated. Through comparative experiments, we find that appropriate deposition techniques annealing conditions lead to self-compliance. The originates from the oxygen...
We have developed a new type of photo-responsive plasmonic vesicles that allow for active delivery anticancer payloads to specific cancer cells and personalized drug release regulated by external photo-irradiation. Our results show amphiphilic gold nanoparticles carrying hydrophilic poly(ethylene glycol) (PEG) hydrophobic poly(2-nitrobenzyl acrylate) (PNBA) can assemble into with embedded in the shell PNBA, which be converted poly(acrylic acid) upon photo exposure. Benefiting from...
This letter presents the novel CMOS-compatible all-metal-nitride resistive random access memory (RRAM) devices based on TiN/AlN/TiN stack. The device has low operation current <;100 μA, retention of > 3×10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5</sup> s at 150 °C, and ac endurance up to 10 Hz. switch characteristics are found agree with filamentary mechanism. In addition, RRAM built an additional hafnium nitride capping layer have...
Clarification of the interaction mechanisms between proteins and bioactive components is important to develop effective carriers for encapsulation protection components. Bovine serum albumin (BSA), a globular protein in milk, contains multiple sites bind variety low-molecular-weight molecules, forming protein-monoligand complexes. In this study, interactions BSA with retinol, resveratrol, and/or (-)-epigallocatechin-3-gallate (EGCG) were investigated by using fluorescence, circular...
In this work, the impact of Ti electrodes on electrical behaviour HfO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> -based RRAM devices is conclusively clarified. To aim, with Pt, TiN and have been fabricated (see Fig. 1). We first provide several experiments to clearly demonstrate that switching driven by creation-disruption a conductive filament. Thus, role TiN/Ti explained modeled based presence...