A5101447647- Silicon Carbide Semiconductor Technologies
- Advanced Battery Technologies Research
- Advanced Electrical Measurement Techniques
- Conducting polymers and applications
- Electromagnetic Compatibility and Noise Suppression
- Fault Detection and Control Systems
- Power Quality and Harmonics
- Advanced DC-DC Converters
- Perovskite Materials and Applications
- Blind Source Separation Techniques
- High voltage insulation and dielectric phenomena
- Aluminum Alloy Microstructure Properties
- Organic Electronics and Photovoltaics
- Microwave Engineering and Waveguides
- Advancements in PLL and VCO Technologies
- Thin-Film Transistor Technologies
- HVDC Systems and Fault Protection
- Analog and Mixed-Signal Circuit Design
- Advanced Welding Techniques Analysis
- Machine Fault Diagnosis Techniques
- Advanced Adaptive Filtering Techniques
- Advanced MEMS and NEMS Technologies
- Analytical Chemistry and Sensors
- Cooperative Communication and Network Coding
- Elevator Systems and Control
Shanghai Electric (China)
2023-2025
Beijing Forestry University
2025
University of Electronic Science and Technology of China
2019-2025
Ministry of Industry and Information Technology
2024
Beijing University of Posts and Telecommunications
2016-2024
Qingdao University
2017-2024
Tiangong University
2024
State Ethnic Affairs Commission
2024
Harbin Engineering University
2017-2024
Southeast University
2020-2023
Abstract Reducing non‐radiative energy loss (∆ E nr ) is critical for enhancing the photovoltaic performance of organic solar cells (OSCs). To achieve this, a small molecular donor, LJ1, introduced as third component in host system D: A (D18: BTP‐eC9‐4F). The cascade‐like level alignment D18, and BTP‐eC9‐4F facilitates efficient charge transfer. LJ1's good solubility processing solvent high miscibility with delay precipitation BTP‐eC9‐4F, leading to improved phase morphology blend films....
A series of blue emitters incorporating spiro[fluorene-9,9′-thioxanthene] or spiro[fluorene-9,9′-thioxanthene-S,S-dioxide] as the core and phenylcarbazole triphenylamine arms were designed synthesized. Their spiro conformation is beneficial for their thermal stability reducing trend aggregation quenching. By tuning valence sulfur atom, highly efficient local excited (LE) state deep charge-transfer (CT) are obtained. The devices based on LE TPA-S CzB-S nondoped emissive layer exhibit high...
Abstract The hole‐conductor‐free printable mesoscopic perovskite solar cells based on the inorganic scaffolds of mesoporous titania, zirconia, and porous carbon have attracted much attention due to their excellent stability low manufacturing cost. However, in such devices, transport photogenerated holes is dominated by diffusion‐assisted charge carrier movement, while driving force insufficient. Reinforcing built‐in electric field (BEF) an effective strategy promote oriented transport....
Extensive research has demonstrated that memristors or trigonometric functions can enhance the complexity of discrete chaotic maps. This article introduces a four-dimensional trigonometric-based memristor hyperchaotic map (4D-TBMHM). By combining memristors, sine, and cosine, 4D-TBMHM exhibits complex dynamical behaviors. Bifurcation multistability phenomena are using numerical methods. The demonstrates symmetric attractor self-growth based on iteration length for various system control...
The off-shore wind voltage sourced converter-based high-voltage direct current (VSC-HVdc) system has very good application prospects, and the DC chopper plays an important role in VSC-HVdc system.In order to solve problem that it is expensive use too many IGBT already exist. An economical concentrated DCC based on thyristors with resonant self-turn-OFF ability (T-DCC) raised. However, its parameter selection needs be further designed optimized. A method goal of lowest cost proposed this...
The auto-balancing bridge method is an impedance measurement with higher accuracy than other traditional methods. balance control algorithm within the a crucial component. Its performance in maintaining symmetry between current flowing through test element and known reference resistor determines accuracy. However, using imaginary of practical diminishes convergence bridge. In this paper, feedforward decoupling module first constructed to compensate for part decouple into two independent...
Due to the low stiffness and loose structure of some previously studied large-stroke XY positioning stages, this paper presents design a novel micropositioning stage based on leaf-shaped flexible parallel mechanism. By modularizing mechanism combining individual modules, compact with mixed series kinematics is developed. The driven by voice coil motor decouple input output directions. In design, mechanical characteristics single parallel, double hybrid mechanisms are in detail. A symmetrical...
Abstract With the popularity of smart terminals, wearable electronic devices have shown great market prospects, especially high-sensitivity pressure sensors, which can monitor micro-stimuli and high-precision dynamic external stimuli, will an important impact on future functional development. Compressible flexible sensors attracted wide attention due to their simple sensing mechanism advantages light weight convenience. Sensors with high sensitivity are very sensitive detect...
A molecular probe with aggregation-induced phosphorescence (AIP) properties for calcium ion-specific detection and imaging<italic>in vivo</italic>was designed.
Allylic azlactones are greatly significant in terms of potential bioactivities and synthetic applications. Owing to the burgeoning interest pharmaceutical industry α
In the fault diagnosis field, feature signal is weak and contaminated by noise. The lock-in amplifier a useful tool for detection. Aiming to amplitude error of caused frequency deviation between measured reference signal, DFT-based automatic estimation method studied improve accuracy signal. Based on this method, software digital proposed detect multiple frequencies signals. This can automatically measure value without prior information. Then, signals are generated through make estimate...
Indium tin oxide (ITO) is a transparent conductive material which extensively used in organic solar cells (OSCs) as electrodes. In inverted OSCs, ITO usually employed cathode, should be modified by cathode buffer layers (CBLs) to achieve better contact with the active layers. this paper, an amine group functionalized fullerene derivative (DMAPA-C60) CBL modify OSCs based on PTB7 donor and PC71BM acceptor. Compared traditional ZnO CBL, DMAPA-C60 exhibited comparable transmittance. show much...
Abstract The frequency of a weak signal is used for fault diagnosis and target identification in various fields. By introducing particle swarm optimization (PSO) spectral entropy (SE), an automated estimation method based on the Duffing oscillator proposed. proposed uses differential structure to enhance timing difference between chaotic large-scale periodic states, which quantitatively distinguished by SE. Then, internal driving force adaptively adjusted PSO allow SE reach minimum value...
In this paper, a newly shunted-line stepped-impedance resonator (SLSIR) is studied and applied to realize high-order balanced filter design for radio astronomy application. The proposed SLSIR not only has more flexible control of the internal coupling between adjacent units but also provides freedom cascade connection filter. Then, operating theory three kinds electrically, magnetically, electromagnetically coupled pairs been discussed utilized high-performance design. Hence, fourth-order...
Internet search has become the most common way that people deal with issues and problems in everyday life. The wide use of largely changed for store information. There is a growing interest impact on users’ affect, cognition behavior. Thus, it essential to develop tool measure changes psychological characteristics as result long-term search. present study aimed Questionnaire Search Dependence (QISD), test its reliability validity. We first proposed preliminary structure items QISD based...
In this paper, a multiple trench split-gate silicon-on-insulator (SOI) lateral double-diffused MOSFET with Schottky rectifier (MTS-SG-LDMOS) is proposed and its characteristics are studied using 2-D simulations. The new structure features double oxide trenches, floating polysilicon split-gate, rectifier. Each includes vertical field plate which enhances the depletion of drift region modulates bulk electric field. As simulation results, when compared to conventional SOI LDMOS (C-LDMOS),...
In the dedicated high-precision power quality analyzer, synchronous sampling is required to reduce effect of spectrum leakage produced by discrete Fourier transform process. Thus, accurate fundamental frequency measurement urgently needed. However, due harmonics and noise in signal, it difficult achieve measurement. Moreover, with wide application high-frequency programmable supply, gradually increasing, which requires analyzers have abilities both high precision a range To solve these...
To explain different doping effects in a buffer layer, thermally annealed interface, and upper epilayers of GaAs/Si films grown by Metalorganic Chemical Vapor Deposition (MOCVD), the behaviors unintentional are investigated detail. A third mechanism arsine impurity incorporation during growth process films, apart from conventional mechanisms gas phase reaction diffusion silicon substrate, is proposed. The experimental results reveal that behavior layer studied determined three types...
With the maturation of digital radio frequency memory (DRFM) technology, various intra-pulse retransmission interference methods have emerged. These flexible and changeable pose significant challenges to radar detection tasks, particularly in modern battlefields. This paper proposes an attention-guided complex-valued transformer (AGCT) as a solution. First, encoder maps received signal contaminated by noise into high-dimensional space. Then, dilated convolution block (DCB) group attention...