期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 109, 期 40, 页码 18876-18880出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp052107k
关键词
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A nonadiabatic quantum dynamic model has been developed to study the process of electron emission from a low-work-function metal surface. The process is initiated by scattering a highly vibrationally excited NO molecule from a surface composed of a Cs layer covering a Ru crystal. The model addresses the increasing quantum yield of the electron emission as a function of the molecular vibrational excitation and incident kinetic energy. The reaction mechanism is identified as a long-range harpooning electron transfer to a molecular ion which is then accelerated toward the surface. Upon impact, the molecular ion emits its excess electron.
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