A5103271243- Metal and Thin Film Mechanics
- Quantum Dots Synthesis And Properties
- Intermetallics and Advanced Alloy Properties
- Gyrotron and Vacuum Electronics Research
- Particle Accelerators and Free-Electron Lasers
- Geological Modeling and Analysis
- Conducting polymers and applications
- Plasma Diagnostics and Applications
- X-ray Diffraction in Crystallography
- Enhanced Oil Recovery Techniques
- Crystallization and Solubility Studies
- Perovskite Materials and Applications
- High Entropy Alloys Studies
- Advanced Computational Techniques and Applications
- Microstructure and mechanical properties
- Electricity Theft Detection Techniques
- Laser Material Processing Techniques
- Advanced Decision-Making Techniques
- Porphyrin and Phthalocyanine Chemistry
- Smart Grid Security and Resilience
- Reservoir Engineering and Simulation Methods
- Additive Manufacturing Materials and Processes
- Chalcogenide Semiconductor Thin Films
- Soil, Finite Element Methods
- TiO2 Photocatalysis and Solar Cells
Harbin Institute of Technology
2023-2024
Shaanxi Normal University
2016-2024
University of Washington
2012-2023
Ministry of Industry and Information Technology
2023
Hefei University of Technology
2010-2022
Beijing University of Technology
2011-2021
Power Grid Corporation (India)
2020
Northeastern University
2020
Zhaoqing University
2020
Shenyang University of Chemical Technology
2020
Abstract The influences of morphology and thickness zinc oxide (ZnO) buffer layers on the performance inverted polymer solar cells are investigated. ZnO with different varying from several nanometers to ≈55 nm fabricated by adjusting concentration precursor sol. nearly same surface quality but ≈7 ≈65 also spinning coating for comparison. photovoltaic is found be strongly dependent less thickness. use dense homogenous enhances fill factor short‐circuit current cell without sacrificing...
Anisotropic 2D layered material rhenium disulfide (ReS2 ) with high crystal quality and uniform monolayer thickness is synthesized by using tellurium-assisted epitaxial growth on mica substrate. Benefit from the lower eutectic temperature of rhenium-tellurium binary eutectic, ReS2 can grow (melting point at 3180 °C) sulfur precursors in range 460-900 °C efficiency.
Abstract The electron transport layer (ETL), perovskite layer, hole and electrode collectively constitute the solar cells (PSCs). Each of these layers plays a critical role in performance devices. However, there are mismatches crystal structure energy levels between ETL materials resulting numerous defects at their interface. In this study, multifunctional organic molecule called phosphorylcholine chloride is designed to modify interface SnO 2 layer. This modification serves both reduce...
A simulation of coherent and super-radiant Smith-Purcell radiation is performed in the gigahertz regime using a three-dimensional particle-in-cell code. The model supposes rectangular grating to be driven by single electron bunch train periodic bunches, respectively. true distinguished from evanescent wave, which has an angle independent frequency lower than minimum allowed frequency. We also find that radiations excited bunches are emitted at higher harmonics bunching corresponding angles.
A sidewall grating for the Smith-Purcell device is proposed to enhance coupling of optical mode with electron beam and, consequently, relax stringent requirements beam. With help three-dimensional particle-in-cell simulations, it has been shown that, comparing general grating, usage a improves growth rate and dramatically shortens time reach saturation. It also found that holds potential reduce start current operation backward wave oscillator.
CdS/CdSe quantum dots co-sensitized TiO2 solar cell was prepared by combining the successive ion layer absorption and reaction (SILAR) method chemical bath deposition (CBD) for fabrication of CdS CdSe dots, respectively. The effect time on performance investigated. It found that optimized 3 h, yielding power conversion efficiency 3.3%. methods introduced in this paper are a simple route dot-sensitized cells with achieving descent efficiency.
This letter reports a theory to calculate the growth rate and start current of Smith–Purcell free-electron laser, which is promising radiation source in terahertz domain. A two-dimensional model was used investigate interaction between sheet electron beam surface wave above lamellar grating. After deriving from dispersion equation, carefully estimated by considering power flow The agreement predictions our results particle-in-cell simulations acceptable.
Strong orientation dependent hardness has been observed in both as-deposited and low-temperature annealed Ti/Ni multilayer thin films. The anisotropic of films is attributed to dominant deformation mechanism switch from dislocation pile-up against the interfaces confined layer slip (CLS) within layers as loading direction changes perpendicular parallel interfaces. Additional strengthening multilayers achieved after annealing without noticeable microstructure modification due...
As a kind of sustainable energy source, ocean wave has always attracted attention. Because the characteristics multi-directions and low-bandwidth, harvesting been difficult. To harvest broadband in multiple directions improve power generation efficiency, we present multi-modal device by using cross beam structure. In this device, efficient multi-frequency vibration achieved structure high efficiency electric based on liquid metal. Contrast experiments show that not only capability...
Abstract Strong thermal effect on microstructure and mechanical properties of Ti/Ni multilayer thin films was observed from in situ heating during deposition subsequent annealing. Films deposited at low-temperature show preferred crystallographic texture for both Ti Ni layers, with columnar structure extending through the layers. The becomes more distinct complete increase temperature up to 300 °C, meanwhile, atomic diffusion intermixing occur along interfaces, promoting formation Ti-Ni...
H. Xu, J. Zhang, and co-workers synthesize anisotropic 2D-layered rhenium disulfide with high crystal quality uniform monolayer thickness. As described on page 5019, tellurium-assisted epitaxial growth a mica substrate is chosen to generate such structures.
In recent years, electrical fires caused by arc faults have been increasing, seriously affecting the safety of people’s lives and property. Considering complex fault characteristics actual low-voltage users, non-intrusive detection localization method is studied. First, current waveforms are analyzed, event based on Mann–Kendall Test performed for difference between two adjacent cycles, rather than using directly. Then, segments calculated via subtraction to obtain waveform electric...
Purpose This paper aims to analyze the different between matrix and overhanging structure indicate laws mechanism of formed by selective laser melting (SLM). Design/methodology/approach includes processing with optimized parameters analyzing microstructure properties OM, SEM, XRD etc. so as reveal SLM. Findings The solidification begins from structure’s edge extends its center; distribution Cr a diameter 250 nm in Fe is uniform; grain growing faster than matrix. mainly composed austenite has...
Banana crown cutting is an important part of banana harvesting.High quality incision can result in better economic value for the fruit.Mechanized reduce labour and production cost, increase efficiency.This article aimed at solving problem poor high energy consumption machine.Cutting experiments were carried out on electronic universal testing machine by replacing cutter components with different parameters.The effects number sets, speed, edge angle thick cutter, thickness width length thin...
Sports and physical fitness play important roles in people’s daily life. By sticking to exercise we can better enjoy a healthy Scientific accurate monitoring of sports training individual condition is important. However, many challenges still need be solved, such as the complex design measurement devices, external power supplies, inaccurate data, unscientific methods. Recently, TENG-based self-powered real-time sensors have attracted much more attention due their unique advantages wearable...
This letter reports a new magnetic field-enhanced radio frequency (RF) ion thruster, which uses high-frequency shielding network to isolate the direct current and RF supplies. provides an additional field for novel magnetized thruster (HRIT-4M) without changing original structure. The results show improvement in performance of verified field. Compared other excitation structures, this structure is simpler more efficient. However, it influenced by factors such as size discharge chamber...
Two kinds of films are deposited on 316L stainless steel substrates by radio frequency reactive magnetron sputtering technique. One is fluorinated diamond-like carbon film (F-DLC) the substrate directly and other F-DLC with SiC intermediate layer. This paper focuses changing regulation adhesion preparation condition. As result, layer obviously much better than that F-DLC, dependent condition The can reach 8.7 N 200 W RF input power 5 min deposition time, which bigger without (4 N). mechanism...