CHEMICAL HOLE DIVING

被引:30
作者
GREBER, T
机构
[1] Fritz-Haber-Institut der Max-Planck-Gesellschaft, D-14195 Berlin
关键词
D O I
10.1016/0009-2614(94)00344-0
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The non-adiabatic reaction leading to the emission of exoelectrons during the adsorption of oxygen on lithium is exploited to estimate the time that elapses during the dissociation of the molecule. With a three-step model the exoemission probability is calculated. A comparison with experimentally observed probabilities predicts the reaction time to be 75 +/- 25 O2p hole lifetimes at the final O2p binding energy. The width of the exoelectron energy distribution reflects this hole lifetime. The absence of visible light emission (< 10(-10) photons/O2) is shown to be compatible with the model.
引用
收藏
页码:292 / 296
页数:5
相关论文
共 15 条
  • [1] BOTCHER A, 1990, PHYS REV LETT, V65, P2035
  • [2] BOTTCHER A, 1991, J CHEM PHYS, V95, P3756, DOI 10.1063/1.460826
  • [3] BRENTEN H, 1992, SURF SCI, V206, P151
  • [4] O- ESCAPE DURING THE OXIDATION OF CESIUM
    GREBER, T
    GROBECKER, R
    MORGANTE, A
    BOTTCHER, A
    ERTL, G
    [J]. PHYSICAL REVIEW LETTERS, 1993, 70 (09) : 1331 - 1334
  • [5] GREBER T, UNPUB
  • [6] VARIATION OF ADATOM VALENCE-LEVEL POSITIONS WITH THE DISTANCE TO A METAL-SURFACE
    GUNNARSSON, O
    HJELMBERG, H
    NORSKOV, JK
    [J]. PHYSICA SCRIPTA, 1980, 22 (02) : 165 - 170
  • [7] THEORY OF AUGER EJECTION OF ELECTRONS FROM METALS BY IONS
    HAGSTRUM, HD
    [J]. PHYSICAL REVIEW, 1954, 96 (02): : 336 - 365
  • [8] HERMANN K, UNPUB
  • [9] PHOTON AND ELECTRON-EMISSION AS INDICATORS OF INTERMEDIATE STATES IN SURFACE-REACTIONS
    KASEMO, B
    TORNQVIST, E
    NORSKOV, JK
    LUNDQVIST, BI
    [J]. SURFACE SCIENCE, 1979, 89 (1-3) : 554 - 565
  • [10] PHOTON EMISSION DURING CHEMISORPTION OF OXYGEN ON AL AND MG SURFACES
    KASEMO, B
    [J]. PHYSICAL REVIEW LETTERS, 1974, 32 (20) : 1114 - 1117