Numerical studies of the voltage amplitude effect on plasma characteristics in atmospheric pressure driven by dual LF-RF frequency discharge  

作　　者：Yilin YU Zhibo ZHAO Qiuyue NIE Shu CHEN Zhonglin ZHANG 于义琳;赵治博;聂秋月;陈树;张仲麟(School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,People’s Republic of China;Laboratory for Space Environment and Physical Sciences,Harbin Institute of Technology,Harbin 150001,People’s Republic of China;Institute of Scientific and Technical Information,Beijing Academy of Science and Technology,Beijing 100044,People’s Republic of China)

机构地区：[1]School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,People’s Republic of China [2]Laboratory for Space Environment and Physical Sciences,Harbin Institute of Technology,Harbin 150001,People’s Republic of China [3]Institute of Scientific and Technical Information,Beijing Academy of Science and Technology,Beijing 100044,People’s Republic of China

出　　处：《Plasma Science and Technology》2025年第3期45-54,共10页等离子体科学和技术(英文版)

基　　金：supported by National Natural Science Foundation of China (Nos.52377141 and 92371105)。

摘　　要：Dielectric barrier discharges(DBDs)are primarily utilized as efficient sources of large-volume diffuse plasmas.However,the synergistic interaction of certain key plasma factors limits their broader application.In the present paper,we report numerical investigations of the effects of voltage amplitude in dual-frequency excitation on atmospheric DBDs using a 50 kHz/5 MHz frequency combination.Our results indicate that varying the voltages for low frequency(LF)and radio frequency(RF)significantly influences the electron dynamics during discharge,resulting in distinct spatio-temporal distributions of electron and metastable particle densities.These findings contribute to the regulation of discharges under atmospheric pressure conditions and facilitate the attainment of non-equilibrium and nonlinear plasma parameters.

关 键 词：dielectric barrier discharge atmospheric pressure plasma electron dynamics behavior 

分 类 号：O53[理学—等离子体物理]