高电压技术2011，Vol.37Issue(6)：1405-1415,11.
大气压氮气介质阻挡均匀放电
Review of Homogenous Dielectric Barrier Discharge in Nitrogen at Atmospheric Pressure
摘要
Abstract
In order to have a better understanding of the homogeneous dielectric barrier discharge in nitrogen at atmospheric pressure,we summarized the related results mainly from our experiments.It is found that,even with the help of a nitrogen flow through the discharge gap,the homogenous discharge can only be produced in a gap shorter than 3 mm.,which is identified to be a Townsend discharge and is extinguished in an extraordinary manner,i.e.,the discharge is extinguished while the gap voltage continues to increase.The electrons trapped in and released from the shallow traps on the dielectric surface are important for initiating and maintaining the Townsend discharge.The explanation of the effect of the nitrogen flow on the homogenous discharge based on ＂laminar flow＂ is proved to be incorrect.The role played by the nitrogen flow in the formation of the Townsend discharge is to reduce the density of oxygen from impurity,which significantly prolongs the lifetime of the metastable nitrogen molecule N2（A）.N2（A） is suggested to be responsible for releasing the shallowly trapped electrons from the dielectric surface by bombardment,which provides the Townsend discharge with a sufficient amount of the seed electrons.关键词
气体放电/介质阻挡放电（DBD）/汤森放电/层流效应/热刺激电流/介质表面浅陷阱Key words
gas discharge/dielectric barrier discharge（DBD）/Townsend discharge/laminar flow effect/thermally stimulated current/shallow traps on dielectric surface分类
信息技术与安全科学引用本文复制引用
王新新,李成榕..大气压氮气介质阻挡均匀放电[J].高电压技术,2011,37(6):1405-1415,11.基金项目
国家自然科学基金 （）
