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| Formation Mechanism and Emission Spectrum of AlO Radicals in Reaction of Laser－ablated Al Atom and Oxygen | |
| 作者姓名： | ZHANG Shu-dong and LI Hai-Yang ** . Laboratory of Environmental Spectroscopy Anhui Institute of Optics and Fine Mechanics Chinese Academy of Sciences Hefei P. R. China . Graduate School of the Chinese Academy of Sciences Beijing P. R. China . Physics and Electronic Engineering College Northwest Normal University Lanzhou P. R. China |
| 作者单位： | ZHANG Shu-dong 1，2，3 and LI Hai-Yang 1，2** 1. Laboratory of Environmental Spectroscopy，Anhui Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Hefei 230031，P. R. China; 2. Graduate School of the Chinese Academy of Sciences，Beijing 100039，P. R. China; 3. Physics and Electronic Engineering College，Northwest Normal University，Lanzhou 730070，P. R. China |
| 基金项目： | Supported by the National Natural Science Foundation of China( No.2 0 0 730 4 2 ) |
| 摘 要： | IntroductionLaser ablation has been applied broadly toplasma production,cluster formation,nanometermaterial and thin film material preparation1,2 ] .Us-ing spectroscopic technique and mass spectrometryto identify the transient species formed in the pro-cess could provide much useful information aboutthe prosperity ofplasma,the mechanism of materi-al growth3 ,4] .Aluminum is an important metal material andwidely used in industry and daily life. To study thereaction mechanism of Al atoms with… |
| 关 键 词： | 形成机制 发射光谱 AlO 原子团 化学反应 反应机制 激光融化 |
| 收稿时间： | 2002-12-19 |
Formation Mechanism and Emission Spectrum of AlO Radicals in Reaction of Laser-ablated Al Atom and Oxygen |
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| ZHANG Shu-dong ,, and LI Hai-Yang ,** . Laboratory of Environmental Spectroscopy,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei ,P. R. China, . Graduate School of the Chinese Academy of Sciences,Beijing ,P. R. China, . Physics and Electronic Engineering College,Northwest Normal University,Lanzhou ,P. R. China.Formation Mechanism and Emission Spectrum of AlO Radicals in Reaction of Laser-ablated Al Atom and Oxygen[J].Chemical Research in Chinese University,2003,19(3):320-323. | |
| Authors: | ZHANG Shu-dong Li Hai-Yang |
| Institution: | 1. Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, P. R. China; 2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, P. R. China; 3. Physics and Electronic Engineering College, Northwest Normal University, Lanzhou 730070, P. R. China |
| Abstract: | The emission spectrum of AlO radicals was analyzed in 440-540 nm in the reaction of laser ablated Al beam and O2. The carrier of spectrum was assigned to Δν=0, ±1, ±2 vibrational sequences of B2Σ+-X2Σ+ transition of AlO radicals, the observed maximum vibrational quantum number was ν′=6. The rotational and vibrational temperatures of B state were estimated at 3000 and 7500 K by spectrally simulating the rovibronic population distribution. There is a strong evidence that the production of excited Al(2S) atoms is essential to the formation of excited AlO radicals. |
| Keywords: | Laser ablation Emission spectrum AlO Chemiluminescence reaction |
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