物理化学学报 >> 1986, Vol. 2 >> Issue (06): 573-575.doi: 10.3866/PKU.WHXB19860615

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激光诱导荧光法测量PbS* A(0+)态的振动弛豫速率

沈关林; 宁宝纲; 李学初; 楼南泉   

  1. 中国科学院大连化学物理研究所
  • 收稿日期:1985-09-16 修回日期:1986-01-02 发布日期:1986-12-15

THE DETERMINATION OF VIBRATIONAL RELAXATION RATE OF PbS* A(O+) BY LASER-INDUCED FLUORESCENC TECHNIQUE

Shen Guanlin; Ning Baogang; Li Xuechu; Lou Nanquan   

  1. Dalian Institute of Chemical Physics; Chinese Academy of Sciences
  • Received:1985-09-16 Revised:1986-01-02 Published:1986-12-15

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Abstract: The vibrational relaxation rates of PbS~*A(0~+) state in Ar and S_2 have been studied by laser-induced fluorescence technique. The vibrational relaxation rate of PbS~*A(0~+) in S_2 is two orders of magnitude larger than in Ar. Formation of unstable intermediate PbS_3 may be responsible for the fast relaxation. The energy transfer process between A(0~+)(V'=19) and B(1)(V'=6) states is also suggested.