A5100434103- Advanced Energy Technologies and Civil Engineering Innovations
- Advanced Materials and Semiconductor Technologies
- Nuclear Physics and Applications
- Healthcare professionals’ stress and burnout
- Workplace Health and Well-being
- Radiation Therapy and Dosimetry
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear reactor physics and engineering
- Semiconductor materials and interfaces
- Advancements in Battery Materials
- Radiation Detection and Scintillator Technologies
- Radioactivity and Radon Measurements
- Stress and Burnout Research
- Ga2O3 and related materials
- Advanced battery technologies research
- Advanced Battery Materials and Technologies
- Power Systems and Renewable Energy
- Laser Material Processing Techniques
- Nanoparticle-Based Drug Delivery
- Advanced Fiber Laser Technologies
- Laser-induced spectroscopy and plasma
- Advanced Radiotherapy Techniques
- Employment and Welfare Studies
- Photocathodes and Microchannel Plates
- Advanced Electron Microscopy Techniques and Applications
Jilin University
2018-2025
University of Chinese Academy of Sciences
2024-2025
Center for Disease Control
2024
Institute of Occupational Safety
2024
Chinese Center For Disease Control and Prevention
2024
Guangdong Provincial Occupational Disease Prevention Hospital
2023
Betavoltaic (BV) batteries are regarded as appealing power sources due to their high energy densities and long lifetimes. However, the low efficiency maximum output density of conventional BV self-absorption effect radioactive sources, which consist separate beta-radioactive semiconductor absorbers, limit applications. In this work, we optimized compared six 63NiO-related heterojunction nuclear utilizing Monte Carlo software Geant4 finite element analysis COMSOL Multiphysics. The integrate...
Abstract Low room temperature ionic conductivity and interfacial incompatibility severely hinder the further application of polymer electrolytes in lithium metal batteries. Here, a novel shear‐oriented (SO) aliphatic ketone‐carbonyl‐based liquid crystal composite solid electrolyte (FL 7 M 3 @CSPE SO ) is prepared by situ thermal‐polymerization monomer (FPZ‐LC, FL) N, N' ‐Methylenebisacrylamide (MBA, M) on cellulose nanofiber (CNF) presence triethylene‐glycol‐dimethyl‐ether (G salt (lithium...
Wide-bandgap semiconductors are more advantageous for betavoltaic batteries due to their high conversion efficiency and strong radiation resistance. However, there has been little comprehensive analysis of how wide-bandgap lead improvements. In this work, we proposed a simulation model predict the output performance based on 4H-SiC, hexagonal-GaN, diamond, in which Monte Carlo code COMSOL Multiphysics software were combined. The energy deposition 63Ni source electrical characteristics p–n...
Abstract The conventional betavoltaic battery design fails to eliminate the inherent influence of radioactive source self-absorption effect, leading a bottleneck in efficiency and power batteries. In this paper, feasible high-efficiency 63 NiO/ZnO integrated is designed compared with battery. Simulation results show that proposed has better output performance breaks upper limit power. work presented here provides valuable insights for radioisotope designs, physical modeling procedure...
The application of radioactive semiconductors is a potential way to improve the performance betavoltaic battery. stability and band structure decayed 14C diamond are investigated by density functional theory. After decay, atoms substituted nitrogen atoms, it can be seen that corresponding C63N1 C62N2 structures have larger lattice constants become more unstable. metallic system instead an indirect bandgap semiconductor. Different configurations either or semiconductor properties, bandgaps...
For the 63NiO-Si heterojunction betavoltaic nuclear battery, energy deposition of conversion material itself was simulated by Monte Carlo simulation, and structure optimized based on theoretical calculation results. When thickness 63NiO is 4 μm doping concentration Si 1 × 1015 cm−3, short-circuit current density, open-circuit voltage, fill factor, maximum output power density battery are 1.22 μA · cm−2, 3.17 V, 0.95, 3.67 μW cm−2. In addition, performance 63Ni/NiO-Si cell calculated in this...
Betavoltaic batteries can meet long-term energy supply needs. However, due to the decay of radioactive source, output performance battery will change over time, and laws this require elucidation aid engineer. In study, influences time on apparent power density β-energy spectrum 63 Ni source were clarified. Moreover, structural parameters, including p-region, n-region doping concentrations, junction depth GaN-based (hexagonal) p–n junction, optimized, which are 2 × 1017 cm–3, 1014 0.1 μm,...
Abstract The radioactive 4H- 32 SiC is applied as an energy converting material to fabricate high performance betavoltaic batteries. time-related component change considered, and the structural, stability electrical property changes are calculated by density functional theory. As time goes by, number of Si atoms decrease exponentially while concentration S increases gradually. 63 PC 64 configurations have smaller lattice constants, lattices 62 PSC larger. All very small bandgaps indicating...
Abstract Lithium sulfur batteries (Li–S) with high theoretical specific capacity have aroused great interests in the field of energy storage. However, shuttle effect and slow conversion kinetics lithium polysulfides seriously affect its practical application. Particularly, Li–S face significant challenges achieving good long‐term cycling performance under loading low temperatures. Herein, a kind bimetallic organosulfur cathode namely Porphyrin(Cu/Fe)‐S‐rGO content (85 wt.%) which benefits...
This paper presents a simulation model to predict the performance of GaAs-based betavoltaic batteries with p–n junction structure, in which carrier transport and collection characteristics were studied. First, electron–hole pair generation rate GaAs material under irradiation 63Ni source was calculated using Monte Carlo codes. Furthermore, by simulating energy band electric field distribution, current density distribution finite element analysis software COMSOL Multiphysics, we analyzed...
Abstract This paper presents the calculation model and optimization design of GaAs-based betavoltaic batteries with p–n junction Schottky barrier structures. First all, by using Monte Carlo code, transport process energy deposition distribution <?CDATA $^{63}\textrm{Ni}$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msup> <mml:mi /> <mml:mrow> <mml:mn>63</mml:mn> </mml:mrow> </mml:msup> <mml:mtext>Ni</mml:mtext> </mml:math> source beta particles in GaAs...
In this work, energy converters, which contain a GaP–Si heterojunction and Si-based Schottky barrier diodes with Al, Ti, Ag, W, are used to convert 2 μm-thick 63Ni radioactive source into electrical energy. First, deposition distributions of the in these converters simulated by using Monte Carlo method. Then, output properties 63Ni/GaP–Si cell 63Ni/metal–Si determined through numerical calculation. For cell, optimized thickness GaP layer doping concentration Si, maximum power density...
Nuclear battery is a promising long-life power source. Selecting semiconductors with high limit efficiency and appropriate device structures effectively improves their output performance. In this work, GaN-based (hexagonal) betavoltaic Ni63 source was simulated by Monte Carlo codes COMSOL Multiphysics, the energy converters, including p–n junction p–i–n junction, were compared optimized. We analyzed effects of thickness doping concentration each region on performances. The p-region n-region...
Abstract The deuterium-tritium neutron generator is a common source for fast activation analysis. 14.1 MeV neutrons emitted from are difficult to shield due their strong penetrability and the induced secondary gamma rays in shield. A rough calculation based on attenuation factors shows that when with yield of 1 × 10 8 ns −1 penetrate designed shielding layers, which consist 0.5-m-thick concrete layer water layer, ambient dose equivalent rate 2.48 μSv h . geometric model room constructed...
<title>Abstract</title> Background This study aims to investigate the correlation among occupational stress, coping style and depressive symptoms in manufacturing workers of China. Methods A total 2,083 from two enterprises Beijing City four Guangdong Province are selected as subjects using judgment sampling method. The style, depression accessed Core Occupational Stress Measurement Scale, Trait Coping Style Questionnaire Patient Health Depression we analyze symptoms. Results 2,311...
The temporal electrical performance of a 63NiO/ZnO integrated betavoltaic battery is examined. Utilizing first-principles calculations combined with Monte Carlo simulations, we study the energy band structure and density states 63NiO, particularly when 63Ni undergoes 12.5% decay. Our findings reveal that, 63NiO layer 4 μm thick, decay's impact akin to substitution doping. Leveraging this insight, employed Silvaco ATLAS software simulate time-dependent short-circuit current, open-circuit...