物理学报2012，Vol.61Issue(7)：338-344,7.
大气压介质阻挡放电超四边形斑图的等离子体参量
Plasma parameters of square superlattice pattern in a dielectric barrier discharge
摘要
Abstract
Dielectric barrier discharge is an important method of producing nonequilibrium low-temperature plasma.Measurement of the plasma parameters is highly valuable for its industrial application.Plasma parameters of square superlattice pattern are investigated by optical emission spectroscopy in a dielectric barrier discharge by using a two-liquid-electrode dielectric barrier discharge device in argon at atmospheric pressure.It is found that the light intensity of the large diameter microdischarge channel（big dot） is different from that of the small diameter channel（small dot）.Vibrational temperature is investigated by using the N_2 second positive spectrum. Electronic excitation temperature is measured by means of spectral line intensity ratio.Electron density is obtained by using the stark broadening of Ar atom 696.54 nm spectral line.The results show that the electron density and the vibrational temperature of the small dot are larger than those of the big dot but the electronic excitation temperature is lower than that of the big dot.It is suggested that the plasma state of the big dot is different from that of the small dot in the stable square superlattice pattern.关键词
介质阻挡放电/超四边形斑图/等离子体参量Key words
dielectric barrier discharge/square superlattice pattern/plasma parameter分类
数理科学引用本文复制引用
陈俊英,董丽芳,李媛媛,宋倩,嵇亚飞..大气压介质阻挡放电超四边形斑图的等离子体参量[J].物理学报,2012,61(7):338-344,7.基金项目
国家自然科学基金 （）
河北省自然科学基金 （）
河北省教育厅重点项目 （）
2010年度高等学校博士学科点专项科研基金资助课题（批准号：20101301110001）资助的课题~~ （）
