A5101809661- Advanced MEMS and NEMS Technologies
- Acoustic Wave Resonator Technologies
- Nanopore and Nanochannel Transport Studies
- Microwave Engineering and Waveguides
- Nanowire Synthesis and Applications
- GaN-based semiconductor devices and materials
- Graphene research and applications
- Mechanical and Optical Resonators
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Anodic Oxide Films and Nanostructures
- Gas Sensing Nanomaterials and Sensors
- Photonic and Optical Devices
- Radio Frequency Integrated Circuit Design
- Advancements in Photolithography Techniques
- Advancements in Semiconductor Devices and Circuit Design
- Ga2O3 and related materials
- Microfluidic and Bio-sensing Technologies
- 3D IC and TSV technologies
- Semiconductor materials and devices
- 2D Materials and Applications
- Advanced battery technologies research
- Ion-surface interactions and analysis
- Advanced Sensor and Energy Harvesting Materials
- Semiconductor Lasers and Optical Devices
University of Shanghai for Science and Technology
2025
Tsinghua University
2015-2024
Nanjing Agricultural University
2024
Beijing Jiaotong University
2017-2024
Beihang University
2024
Delft University of Technology
2019-2024
Henan University
2022-2024
Xi'an Jiaotong University
2012-2024
Ningbo University of Technology
2023
China Academy of Space Technology
2023
Abstract In recent years, research focusing on synaptic device based phototransistors has provided a new method for associative learning and neuromorphic computing. A TiO 2 /AlGaN/GaN heterostructure-based phototransistor is fabricated measured, integrating nanolayer gate two-dimensional electron gas (2DEG) channel to mimic the weight cleft, respectively. The maximum drain source current 10 nA, while driven at reverse bias not exceeding −2.5 V. excitatory postsynaptic (EPSC) of 200 nA can be...
Graphene is an ideal material for high-performance photodetectors because of its superior electronic and optical properties. However, graphene's weak absorption limits the photoresponsivity conventional based on planar (two-dimensional or 2D) back-gated graphene field-effect transistors (GFETs). Here, we report a self-rolled-up method to turn 2D buried-gate GFETs into three-dimensional (3D) tubular GFETs. Because field inside resonant microcavity enhanced light-graphene interaction area...
The coupling of lithium metal (Li), an ester electrolyte, and high voltage cathode materials is expected to realize rechargeable batteries with energy densities. Herein, a "cationic size effect" first demonstrated promote the dissolution NO3– in electrolyte SEI layer containing Li3N constructed. By adjusting quaternary ammonium (R4N+), charge localization state R4N+ binding between are regulated, achieving solubility (1.8 M) tetraethylammonium nitrate (TEAN) ethylene carbonate. Using TEAN as...
Polymer based quasi-solid-state electrolyte (QSE) has attracted great attention due to its assurance for high safety of rechargeable batteries including lithium metal (LMB). However, it faces the issue low ionic conductivity and solid-electrolyte-interface (SEI) layer between QSE anode. Herein, we firstly demonstrate that ordered fast transport ion (Li+ ) can be realized in QSE. Due higher coordination strength Li+ on tertiary amine (-NR3 group polymer network than carbonyl (-C=O) ester...
In order to incorporate the extraordinary intrinsic thermal, electrical, mechanical, and optical properties of graphene with three dimensional (3D) flexible substrates, we introduce a solvent-driven self-folding approach using graphene-polymer bilayers. A polymer (SU-8) film was spin coated atop chemically vapor deposited films on wafer substrates bilayers were patterned or without metal electrodes photolithography, thin deposition, etching. After patterning, released from they self-folded...
A high responsivity and controllable recovery ultraviolet (UV) photodetector based on a tungsten oxide (WO<sub>3</sub>) gate AlGaN/GaN heterostructure with an integrated micro-heater is reported for the first time.
The reaction rate bottleneck during interconversion between insulating S
Abstract Polymer‐based sodium metal battery (SMB) has a great development prospect due to its low cost, good safety, and high theoretical energy density. However, (Na) electrode suffers cyclic stability the naturally‐formed unstable solid electrolyte interface (SEI). Herein, 3D network polymer, poly‐bis(3‐(2‐methylaziridin‐1‐yl) propanoate (PBMP) is synthesized, for mechanically robust gel polymer (GPE), in which tertiary‐amine functional group with low‐valence N prefers react Na produce...
The negative ion air purifier (NIAP) has been used for capturing particulate matter. Nevertheless, the knowledge on its effectiveness in removing other pollutants such as ammonia gas remains limited. In this study, effect of an NIAP indoor removal was evaluated through a series experimental studies. applicability and different influencing, operating, environmental factors performance were firstly investigated by conducting experiments. Then, order to understand spatial distribution...
Accurate forecasting of epidemic infection trajectories is crucial for safeguarding public health. However, limited data availability during emerging outbreaks and the complex interaction between environmental factors disease dynamics present significant challenges effective forecasting. In response, we introduce CAPE, a novel pre-training framework designed to harness extensive datasets from diverse regions integrate directly into modeling process more informed decision-making on downstream...
Abstract Sensitive solar-blind ultraviolet (UV) photodetectors are important to various military and civilian applications, such as flame sensors, missile interception, biological analysis, UV radiation monitoring below the ozone hole. In this paper, a photodetector based on buried-gate graphene field-effect transistor (GFET) decorated with titanium dioxide (TiO 2 ) nanoparticles (NPs) was demonstrated. Under illumination of 325-nm laser (spot size ~2 μm) total power 0.35 μW,...
Three-dimensional graphene FETs decorated with TiO<sub>2</sub> nanoparticles are used as high-sensitivity ultraviolet photodetectors tunable responsivity and response time.
Reconfigurable attenuators are widely used in microwave measurement instruments. Development of miniaturized attenuation devices with high precision and broadband performance is required for state-of-the-art applications. In this paper, a compact 3-bit attenuator based on radio frequency micro-electro-mechanical system (RF MEMS) switches polysilicon modules presented. The device comprises 12 ohmic contact MEMS switches, π-type resistive compensate structures. Special attention was paid to...
Abstract The molybdenum disulfide (MoS 2 )-based photodetectors are facing two challenges: the insensitivity to polarized light and low photoresponsivity. Herein, three-dimensional (3D) field-effect transistors (FETs) based on monolayer MoS were fabricated by applying a self–rolled-up technique. unique microtubular structure makes 3D FETs become polarization sensitive. Moreover, not only offers natural resonant microcavity enhance optical field inside but also increases light-MoS interaction...
Abstract Metal electrode with long cycle life is decisive for the actual use of metal rechargeable batteries, while dendrite growth and side reaction limit their cyclic stability. Herein, construction polymer inorganic‐rich SEI tandem layer structure on Li can be used extraordinarily extending its reported, which generated by an in situ PVDF/LiF/LiNO 3 (PLL) gel surface a chemically compatible ether solvent. The Li//Li cells over 6000 h, six times longer than those LiNO homogeneous...
We developed an AlGaN/GaN high electron mobility transistor (HEMT) sensor with a tungsten trioxide (WO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> ) nano-film modified gate for nitrogen dioxide (NO xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> detection. The device has suspended circular membrane structure and integrated micro-heater. thermal characteristic of the Platinum (Pt) micro-heater HEMT self-heating are studied modeled....
This paper presents an improved three-step wet etching method for the fabrication of single-crystal silicon nanopores and nanoslists. A diffusion model was built to analyze influence color-based feedback mechanism on final pore size. Reference structures were added aside normal patterns, obtain a more precise control size during opening process. By using this method, square with minimum 8 nm × nm, rectangle nanoslits feature sizes down 5 successfully obtained. Focused ion beam cutting...