物理化学学报 >> 1991, Vol. 7 >> Issue (04): 394-395.doi: 10.3866/PKU.WHXB19910403

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激光作用磷化铟所产生的负离子质谱及其分析

张鹏; 黄荣彬; 李文莹; 苏剑瑞; 郑兰荪   

  1. 厦门大学化学系,厦门 361005
  • 收稿日期:1991-03-02 修回日期:1991-04-18 发布日期:1991-08-15
  • 通讯作者: 郑兰荪

Mass Spectrometry of Laser Generated Negative InP Cluster Ions

Zhang Peng; Huang Rong-Bin; Li Wen-Ying; Su Jian-Rui; Zheng Lan-Sun   

  1. Department of Chemistry, Xiamen University, Xiamen 361005
  • Received:1991-03-02 Revised:1991-04-18 Published:1991-08-15
  • Contact: Zheng Lan-Sun

关键词: 磷化铟, 激光等离子体质谱, 原子簇

Abstract: Both positive and negative InP cluster ions were generated on a self-built laser probe time-of-flight mass spectrometer. The negative mass spectra showed an alternation of the cluster ion intensities with the odd/even total number of atoms in the clusters. This result is attributed to that all the valence electrons in the clusters of odd atom number are paired, thus stable. It is proposed that, based on the above result, the stability of such cluster ions depends more on their electronic structures than on their geometric structures. Further studies on both theoritical computation and experimentation are being carried on.

Key words: Indium phosphide, Laser plasma Mass Spectrometry, Cluster