氢气、氢气/硅烷等离子体时间分辨光发射谱的研究  

Time Resolved Optical Emission Spectrum for Hydrogen and Hydrogen/Silane Plasma

作　　者：张发荣 张晓丹[2] AMANATIDES E 赵颖[2] ZHANG Fa-rong;ZHANG Xiao-dan;AMANATIDES E;ZHAO Ying(School of Biological and Environmental Engineering, Tianjin Vocational Institute,Tianjin 300410,China;Institute of Photo-electronics Thin Film Devices and Technique,Devices and Technique of Tianjin,Key Laboratory of Opto-electronic Information Science and Technology,EMC,Nankai University,Tianjin 300071,China;Plasma Technology Laboratory,Department of Chemical Engineering University of Patras,Patras 26500,Greece)

机构地区：[1]天津职业大学生物与环境工程学院,天津300410 [2]南开大学光电子薄膜器件与技术研究所,光电信息技术科学教育部重点实验室(南开大学),天津300071 [3]希腊帕特雷大学等离子体技术实验室,希腊帕特雷26500

出　　处：《发光学报》2019年第4期528-534,共7页Chinese Journal of Luminescence

基　　金：国家自然科学基金(60506003);天津市自然科学基金(05YFJMJC01600);天津职业大学校基金项目(20171101)资助~~

摘　　要：为了加深对等离子体增强化学气相沉积的认识,采用增强型电荷耦合器件(ICCD)研究了氢气及氢气/硅烷混合气体在不同气压条件下的时间分辨光发射谱,获得了辉光放电等离子体瞬态微观动力学过程的清晰图像。纯氢气辉光条件下,在一个射频周期内,Hβ时间分辨光发射谱出现了4个峰。分析表明其中两个峰是由电子冲浪效应引起,额外两个峰的出现是由瞬时阳极时刻存在额外电场所致。另外,可观察到随着气压的增大,体欧姆加热效应增强。同氢气相比,当硅烷引入后,Hβ时间分辨光发射谱由原来4个明显发射峰变成了两个明显发射峰。The spatial and temporal resolved optical emission spectrum (OES) has been studied by ICCD for hydrogen and hydrogen/silane mixture gas,in order to deepen the understanding of the plasma enhanced chemical vapor deposition. Plasma clear microcosmic dynamics figures of instantaneous glow discharge have been obtained. In pure H2 plasma, there appear four peaks in one radio frequency cycle. Two of these peaks are formed by electron wave-riding effect, and the other two peaks are caused by the extra electric field which is formed at the instantaneous anode. This phenomenon validates and extends the traditional radio frequency plasma discharge dynamics theory. In addition, from the picture, it can be found that the bulk Ohmic heating mechanism increases with pressure. When introducing the silane into the hydrogen, the four clear peaks change to two clear peaks.

关 键 词：等离子体 光发射谱 微观动力学 

分 类 号：O461.2[理学—电子物理学]