A5101501477- Silicon and Solar Cell Technologies
- Semiconductor materials and interfaces
- Thin-Film Transistor Technologies
- Integrated Circuits and Semiconductor Failure Analysis
- Grouting, Rheology, and Soil Mechanics
- Geotechnical Engineering and Soil Stabilization
- Mechanical stress and fatigue analysis
- Advancements in Semiconductor Devices and Circuit Design
- Civil and Geotechnical Engineering Research
- Photovoltaic System Optimization Techniques
- Railway Engineering and Dynamics
- Luminescence Properties of Advanced Materials
- Structural Load-Bearing Analysis
- Semiconductor materials and devices
- Vibration and Dynamic Analysis
- Power Systems and Technologies
- Smart Grid and Power Systems
- Elevator Systems and Control
- Advanced Memory and Neural Computing
- Advanced Sensor and Control Systems
- Adhesion, Friction, and Surface Interactions
- Electrical Contact Performance and Analysis
- Transition Metal Oxide Nanomaterials
- Composite Structure Analysis and Optimization
- Advanced Machining and Optimization Techniques
Southwest Jiaotong University
2023-2024
Commercial Aircraft Corporation of China (China)
2024
Xijing University
2023
Heilongjiang University of Technology
2020-2021
Beijing Solar Energy Research Institute
2013-2021
Sichuan University
2014
Shandong University
2013-2014
Soochow University
2014
Kunming University of Science and Technology
2010
Washington University in St. Louis
2008
We report the phenomenon of extraordinary electroconductance in microscopic metal-semiconductor hybrid structures fabricated from GaAs epitaxial layer and a Ti thin film shunt. Four-lead Van der Pauw show gain 5.2% under +2.5kV∕cm with zero shunt bias. The increase sample conductance results thermionic field emission electrons geometrical amplification. A model provides good agreement experimental data clearly demonstrates geometry dependence effect (EEC). differences between EEC devices...
Ion-implantation offers numerous advantages (i.e., single-side precise control and reproducibility of the dopant, simultaneous SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> passivation during annealing, no phosphosilicate glass formation) for solar cell manufacturing. Canadian Solar Inc. has developed an average efficiency 19.23% blank emitter (156 mm Cz) process using a high-throughput Varian (Applied Materials) Solion ion-implant...
This paper presents a design of low voltage band-gap reference circuit for OLED-on-silicon. In order to make the op-amp working in high-gain area, boost technique is used amplifier increase gate drive ability. The source uses first-order temperature compensation eliminate influence source. Simultaneously, power dissipation greatly decrease because designed weak inversion layer. simulation conducted chartered 0.35 um 2-poly 4-metal 3.3 V/18 V high process, and results show that proposed meets...
Black silicon texturing has been considered to be a promising wafer technology and can effectively improve the short-circuit current and, thus, power conversion efficiency, which widely used in multicrystalline photovoltaic industry. In this article, we propose new method “recognize” black morphology from scanning electron microscope (SEM) images predict resultant reflectance. ImageJ software was applied recognize analyze SEM for first time, obtain acid-etched pit parameters. Then,...
Abnormal wear of stitch wires due to interference poses a serious threat railway safety.To avoid this scenario, the concept dynamic envelope wire was proposed, accompanied by an check method.A multi-node beam model established using finite element method, employed simulate pantograph and catenary system, validated field test.The behaviour studied, introduced.Moreover, factors affecting were analysed, method proposed.Results demonstrate that, vibration mainly occurs in vertical direction...
Abstract A harmonic balance method for underconstrained dry friction systems containing rigid body modes (HBM-RBM) is proposed. This aims to overcome the encountered obstacle when applying turbine blades damped by underplatform dampers (UPDs). The inspiration HBM-RBM comes from free interface modal synthesis method. key innovation involves deriving elastic inversion of singular stiffness matrix through elimination modes. In this way, general HBM framework can be adopted, and frequency...
The opposite-pull retaining wall, formed by the anchor of both sides opposite-pulling cantilever is a new type supporting structure. Comparing with traditional bearing ratio changes remarkably which will influences structure stress. In order to popularize and apply wall structure, indoor model made different magnitude prestress applied on top simulate filling height. Test shows that as load increases proportion beared decreases while lower gradually. And soil arch effect appears near anchor....
In this paper, thin plate theory and moderately thick are proposed for analyzing the bending problem of rectangular plates with stepped thickness resting on elastic half-space foundation. The ground reaction is considered as an unknown coefficient hypothesis Winkler foundation model two-parameter eliminated in method, so to obtain law internal force distribution contact between divided into upper lower plates, used analytical solution. obtained solutions paper compared results reported other...
In this paper, the bending behavior of rectangular plates with stepped thickness resting on an elastic half-space foundation is investigated through analytic method. Combined theory thin and moderately thick plate, plate divided into upper lower plates, Fourier series used to obtain analytical solution deflection interaction force between foundation. The influence modulus theory, dimension also discussed. results show that basically same as existing research results, it verified by analysis...
Through field test, physical and mechanical properties, composition, characteristics compaction properties of the Yellow River alluvial silt soil were analyzed. The result shows that inside air was difficult to discharge due influence particle composition low content clay. As a result, uneven settlement deformation subgrade is obvious stability silty water not enough. rainfall frequent. Moisture too high. It dry soil. construction period short. In order speed up pace construction, we...
Through the dedication in technology innovation and differentiation, Canadian Solar has firstly realized high efficiency multi-Si bifacial PERC cells modules PV industry 2018. The R&D cell reaches 21.4% 72-cell module (144 half-cell format) wattage exceed 410W. attribute to state-of-the-art black-silicon texturing, laser doping selective emitter, PERC, optimized stack layers antifriction, 9-busbar fine-line printing. Some breakthroughs mitigating LID/LeTiD of CSI's mc-Si were made, including...
Abstract Taking into account the reliability of power supply, this paper proposes an optimal planning method for distribution transformer network adapting to seasonal load in order improve low efficiency equipment utilization rural coal-to-electricity conversion areas. In method, a bi-level programming model is constructed minimize overall cost. Voronoi used plan at upper level, Prim algorithm low-voltage supply line lower and genetic optimize solution (seek solution). Finally, feasibility...
Monitoring the light and elevated temperature induced degradation (LeTID) of crystalline silicon solar cells is becoming a standard quality control point in manufacturing. The conventional method soaking shows several drawbacks, such as slow response, large footprint, low throughput, which limit LeTID test sampling rate, especially GW scale mass production. Besides soaking, can be by applying forward bias upon P-N junction, current injection. Here, we prove that injection induce same level...
The passivated emitter and rear solar cells (PERC) have been investigated for industrial application in recent years. For PERC cells, the side is by dielectric films, whereby films are locally opened contact formation. In screen-printed however, local contacts suffer from Kirkendall voids weak BSF layer intensely. this paper, influence of different dot geometries on formation was investigated. Decreasing pitch or increasing opening size, presence decreased drastically. Besides, quality improved.
2016 International Conference on Solid State Devices and Materials,A Sidewall Electrode TiOx/TiOxNy ReRAM with Excellent Memory Window Control Reliability Using Plasma Oxidation a Novel Degradation-detecting Writing Algorithm
Ion-implantation offers numerous advantages (i.e. single side precise control and reproducibility of the dopant, simultaneous SiO2 passivation during annealing, no phosphosilicate glass formation) for solar cell manufacturing. Canadian Solar Inc. (CSI) has developed an average efficiency 19.23% blank emitter (156mm Cz) process. In order to improve efficiency, focus is placed on well known advanced PERC architecture with optimized back passivation. The approach combine surface provided by a...
With the highway subgrade fill increasing, traditional retaining wall cannot meet requirements for supporting. To this requirement, prestressed opposite-pull was put forward. Due to anchor pull of new-style wall, its bearing capacity enhanced, but stress is not clear. In order reveal distribution FLAC3D adept do numerical simulation on wall. It simulated three conditions with no anchor, without prestress and anchor. The results showed that, after layout lateral earth pressure region near...