Optical Spectroscopic Investigation of Ar/CH_3OH and Ar/N_2/CH_3OH Atmospheric Pressure Plasma Jets  

作　　者：周永杰 袁强华 王晓敏 殷桂琴 董晨钟 

机构地区：[1]Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province,College of Physics and Electronic Engineering,Northwest Normal University

出　　处：《Plasma Science and Technology》2014年第2期99-103,共5页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(No.11165012);China Postdoctoral Science Foundation Funded Project(Nos.2011M501494,2012T50831);Project of Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province,China;Project of Northwest Normal University of China(NWNU-LKQN-11-9)

摘　　要：Ar/CH3OH and Ar/N2/CH3OH plasma jets were generated at atmospheric pressure by dual-frequency excitations. Two different cases were studied with focus laid on the generation of CN radicals. In one case Ar gas passed through a bubbler with saturated methanol steam but without addition of N2 （Ar/CH3OH plasma）. In the other case N2 passed through the bubbler with saturated methanol steam （Ar/N2/CH3OH plasma）. The optical emission lines of CN radicals have been observed in these two cases of plasma discharges. The addition of N2 can significantly increase the optical emission intensity of CN bands.Ar/CH3OH and Ar/N2/CH3OH plasma jets were generated at atmospheric pressure by dual-frequency excitations. Two different cases were studied with focus laid on the generation of CN radicals. In one case Ar gas passed through a bubbler with saturated methanol steam but without addition of N2 （Ar/CH3OH plasma）. In the other case N2 passed through the bubbler with saturated methanol steam （Ar/N2/CH3OH plasma）. The optical emission lines of CN radicals have been observed in these two cases of plasma discharges. The addition of N2 can significantly increase the optical emission intensity of CN bands.

关 键 词：atmospheric pressure plasma jet carbonaceous species optical emission spec- troscopy dual-frequency excitation 

分 类 号：O53[理学—等离子体物理] O358[理学—物理]