中性掺杂铝团簇在特殊源环境中的产生及其光电离质谱  

Neutral Doped Aluminum Clusters: Generation under Special Source Conditions and their Photoionization Mass Spectra

作　　者：翟华金[1] 倪国权[1] 周汝枋[1] 王育竹[1] 

机构地区：[1]中国科学院上海光机所量子光学开放研究实验室,上海201800

出　　处：《中国激光》1998年第8期722-726,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金资助课题! (No.19574 0 59;No.196 340 30 )

摘　　要：报道集 Aln(n =7～ 14) ,Aln Cm(m =1,2 ) ,Aln(H2 O) m(m =1,2 )和 Aln Om(m =1,2 ,… ,7)诸系列于一谱的中性铝团簇和中性掺杂铝团簇光电离质谱 ,研究了各掺杂系列的尺寸特性及其随杂质组份相对含量的演变。We report photoionization TOF mass spectra which contain simultaneously Al n (n=7~14), Al nC m (m=1,2), Al n(H 2O) m (m=1,2) and Al nO m (m=1,2,…,7) series, and discuss the main features of each series as well as their evolution with the relative concentrations of the dopants/reactants. An explanation is put forward to analyse the magic numbers of Al nC and Al nC-. Also, formation mechanism of the aluminum-oxygen mixed clusters, Al 5O 3, Al 7O 4 and Al 9O 7, is suggested.

关 键 词：掺杂铝团簇 光电离质谱 激光蒸发 脉冲分子束 

分 类 号：TN241[电子电信—物理电子学]