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报道了自行研制的磁瓶式飞行时间光电子能谱仪 ,它安装在自制的反射式飞行时间质谱仪的一级聚焦点的接口部位 ,将用于二元合金团簇负离子几何和电子结构的研究 .仪器测试的能量分辨好于 0 .1eV ,达到了设计指标 .对PbM-(M =Cu ,Ag ,Au)二元合金团簇负离子进行了光电子能谱的实验 ,获得的绝热电子亲合势与密度泛函的计算结果符合的很好 ,由此表明 ,该光电子能谱仪将适用于二元合金团簇负离子体系的研究 .
A self-developed magnetic vial time-of-flight photoelectron spectrometer is reported, which is installed on the interface of the first-order focused point of a self-made reflective time of flight mass spectrometer and will be used for the study of the geometry and electronic structure of the negative ions in binary alloy clusters The energy of the instrument was better than 0.1 eV and reached the design index.The experiment of photoelectron spectroscopy on the anions of PbM- (M = Cu, Ag, Au) binary alloy clusters showed that the adiabatic electron affinity The calculated results are in good agreement with the results of density functional theory. The results show that this photoelectron spectrometer will be suitable for the study of the negative ion system of binary alloy clusters.