Surface Analysis by Using Inverse Photoelectron Spectroscopy

使用反光电子能谱进行表面分析

基本信息

项目摘要

Photoelectron spectroscopy is a well-known method to see occupied electronic states in many substances. Recently, inverse photoelectroti spectroscopy attracts much interest, since we can investigate unoccupied electronic states by using it. however, there are lots of technical problems to apply the inverse photoelectron spectroscopy.We have aimed to construct inverse photoelectron spectrometer, especially in the soft-x-ray energy region and to investigate unoccupied electronic states of surfaces in metals, semiconductors, and insulators.On the way to our goal, however, we have found that surface electronic states change drastically in the experiment with inverse photoelectron spectroscopy. This change originates from the surface reaction induced by electron beam, which is an important device to conduct an experiment of inverse photoelectron spectroscopy. Thus, we have focused our power to investigate the surface reaction induced by electron beam.We have found that cyanide ions are produced in the surface layers of NaCi and KCI crystals by electron bombardment. The production mechanisms were discussed from experimental results of their temperature dependence. The sputtering of constituent atoms and ions was also observed, and its mechanisms were discussed. Moreover, the molecular luminescence Induced by electron beam was observed in high temperature superconductors and it was attributed to the surface cyanide ions.
光电子能谱是一种众所周知的观察许多物质中占据电子态的方法。最近,反向光电光谱引起了人们的极大兴趣,因为我们可以利用它来研究未占据的电子态。然而,逆光电子能谱的应用还有许多技术问题。我们的目标是建立逆光电子能谱仪,特别是在软X射线能区,并研究金属、半导体和绝缘体中表面的未占据电子态。然而,在实现目标的过程中,我们发现在逆光电子能谱实验中,表面电子态发生了巨大的变化。这种变化源于电子束引起的表面反应,电子束是进行反转光电子能谱实验的重要装置。因此,我们集中精力研究了电子束引起的表面反应。我们发现,氰离子是通过电子轰击在NaCI和KCI晶体的表层产生的。根据它们的温度依赖性实验结果,讨论了它们的产生机理。还观察到了组成原子和离子的溅射现象,并对其机理进行了讨论。此外,在高温超导体中观察到了电子束诱导的分子发光,并将其归因于表面的氰离子。

项目成果

期刊论文数量(12)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
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M.KAMADA,S.HIROSE: "Temperature Dependence of Ultraviolet Emission from CN^- in Surface Layers of NaCl and KCl" Journal of The Physical Society of Japan. 60. 3178-3183 (1991)
M.KAMADA,S.HIROSE:“氯化钠和氯化钾表面层中 CN^- 紫外线发射的温度依赖性”日本物理学会杂志。
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Masao Kamada and Sayumi Hirose: "Temperature Dependence of Ultraviolet Emision from CN^- in Surface Layers of NaCl and KCl" Journal of The Physical Society of Japan. 60, No. 9. 3178-3183 (1991)
Masao Kamada 和 Sayumi Hirose:“氯化钠和氯化钾表面层中 CN^- 紫外线发射的温度依赖性”日本物理学会杂志。
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M.KAMADA,E.T.ARAKAWA: "Sputtering of ExcitedーState Potassium Atoms from ElectronーBombarded KBr Crystals" J.Vac.Sci Tech.A8. 3152-3156 (1990)
M.KAMADA、E.T.ARAKAWA:“电子轰击 KBr 晶体中激发态钾原子的溅射”J.Vac.Sci Tech.A8 (1990)。
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M.KAMADA,S.HIROSE: "Molecular Luminescence from Electron-Bombarded YBa_2 Cu_3 O_<7-x>" Japanese Journal of Applied Physics. 30. 2802-2803 (1991)
M.KAMADA,S.HIROSE:“电子轰击 YBa_2 Cu_3 O_<7-x> 的分子发光”日本应用物理学杂志。
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KAMADA Masao其他文献

KAMADA Masao的其他文献

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{{ truncateString('KAMADA Masao', 18)}}的其他基金

Development of New Analyzing Method of Excited States Using Combination of Soft X-Rays and Laser
软X射线与激光相结合的激发态分析新方法的开发
  • 批准号:
    17360022
  • 财政年份:
    2005
  • 资助金额:
    $ 0.19万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Control of material properties with photo-induced charge transfer using negative electron affinity surface
使用负电子亲和力表面通过光诱导电荷转移控制材料特性
  • 批准号:
    13440101
  • 财政年份:
    2001
  • 资助金额:
    $ 0.19万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
New Spectroscopy using combination of synchrotron radiation and laser
结合同步辐射和激光的新型光谱学
  • 批准号:
    11215210
  • 财政年份:
    1999
  • 资助金额:
    $ 0.19万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas (B)
Core-level Spectroscopy using Coincidence of Synchrotron Radiation and Laser
利用同步辐射和激光同时进行的核心级光谱学
  • 批准号:
    10304025
  • 财政年份:
    1998
  • 资助金额:
    $ 0.19万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A).
Study of photodesorption dynamics by using pulsive synchrotron radiation
利用脉冲同步辐射研究光解吸动力学
  • 批准号:
    05452045
  • 财政年份:
    1993
  • 资助金额:
    $ 0.19万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)

相似海外基金

Development of near-ambient-pressure low energy inverse photoelectron spectroscopy and study on atmospheric and solvent effects on unoccupied states of n-type organic semiconductors.
近环境压力低能逆光电子能谱的发展以及大气和溶剂对n型有机半导体空位态影响的研究。
  • 批准号:
    23KJ0310
  • 财政年份:
    2023
  • 资助金额:
    $ 0.19万
  • 项目类别:
    Grant-in-Aid for JSPS Fellows
Enhancement of signal intensity of inverse photoelectron spectroscopy by surface plasmon resonance
表面等离子体共振增强反光电子能谱的信号强度
  • 批准号:
    16K13924
  • 财政年份:
    2016
  • 资助金额:
    $ 0.19万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
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