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1997 Fiscal Year Final Research Report Summary

Research into the mechanism of the desorption induced by electronic transitions (DIET) at the surface of rare gas solids

Research Project

Project/Area Number 07455027
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 表面界面物性
Research InstitutionGakushuin University, Faculty of Science

Principal Investigator

ARAKAWA Ichiro  Gakushuin University Faculty of Science Department of Physics Professor, 理学部, 教授 (30125976)

Co-Investigator(Kenkyū-buntansha) HIRAYAMA Takato  Gakushuin University Faculty of Science Department of Physics Research Associate, 理学部, 助手 (40218821)
Project Period (FY) 1995 – 1997
Keywordsrare gas solid / exciton / ionization in solid / desorption / DIET / ESD / PSD
Research Abstract

We have investigated the desorption at the surface of rare ges solids innduced by electron and photon irradiation on it. The results achieved in this research project are summarized below.
1. We have ascertained the validity of the cavity-ejection mechanism, which has been proposed for the desorption of metastables initiated by a surface exciton, by the detailed measurement of the kinetic energy distribution and the angular distribution of desorbed species. The absolute yield of desorption was also determined. This is regarded as a first step to give a quantitative picture of the desorption process.
2. We have revealed that the desorption and the deexcitation process after the excitation of 2p^53p-type surface exciton, which is allowed only at surface, has a complex aspect in connection with its fine structure.
3. In the experimental study on the alloy of rare gas solids, we have found a characteristic feature, selectivity of desorbed species for example, which was likely related to the excitation energy exchange between hetero-species and the diffusion of an exciton in alloyed matrix.
4. We have revealed that a small amount of hydrogen physisorbed on the surface of rare gas solids causes a significant effect on the desorption process.
5. Through the measurement of the excitation spectrum, the luminescence, and the kinetic energy of desorbed species with a high resolution apparatus, we got the clue which may reveal the detail of the elementary process, such as, the cascade of deexcitation, the diffusion process, so on.

  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] I.Arakawa, et al.: "Angular and kinetic energy distributions of the desorption of Ne metastable induced by excitons at the surface of solid Ne" Nuclear Instruments and Methods in physics Research B. 101. 195-199 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Sakurai, et al.: "Angular distribution of Ne metastable desorption induced by exciton formation at the surface of solid Ne Measurement and computer simulation" Shinku (Journal of Vacuum Society of Japan). 38. 414-417 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] D. E. Weibel, et al.: "Electronic energy transfer in rare‐‐gas solid alloys studied by photon stimulated desorption" Langmuir. 12. 193-198 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Hirayama, et al: "Excitonic energy transfer process in Ne-Kr alloy studied by photon stimulated desorption of metastable atoms" Jounal of Electron Spectroscopy and Related Phenomena. 80. 101-104 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] E.V.Savchenko, et al.: "Long life-time emission of the excited species ejected from the surface of solid Ne" Surface Science. 390. 261-265 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Hirayama, et al.: "Absolute desorption yield of metastable atoms from the surface of solid rare gases induced by exciton creation" Surface Science. 390. 266-271 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Kuninobu, et al.: "Desorption of metastable species induced by electronic excitation at the surface of solid krypton with physisorbed hydrogen" Surface Science. 390. 272-276 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I.Arakawa: "Exciton induced desorption at the surface of rare gas solids" Molecular Crystals and Liquid Crystals. (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] A.Hayama, et al.: "Desorption of metastable particles induced by electronic excitation at the surface of rare gas solids with hydrogen physisorbed" Jounal of Vacuum Science and Technology A. 16. (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I.Arakawa, D.E.Weibel, T.Nagai, M.Abo, T.Hirayama, M.Kanno, K.Mitsuke, and M.Sakurai: "Angular and kinetic energy distributions of the desorption of Ne metastable induced by excitons at the surface of solid Ne" Nucl.Instrum.Meth.B. 101. 195-199 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Sakurai, T.Nagai, M.Abo, T.Hirayama, and I.Arakawa: "Angular distribution of Ne metastable desorption induced by exciton formation at the surface of solid Ne : Measurement and computer simulation" Shinku (J.Vac.Soc.Jpn.). 38. 414-417 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] D.E.Weibel, T.Nagai, T.Hirayama, I.Arakawa, and M.Sakurai: "Electronic energy transfer in rare--gas solid alloys studied by photon stimulated desorption" Langmuir. 12. 193-198 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hirayama, T.Nagai, M.Abo, I.Arakawa, K.Mitsuke, and M.Sakurai: "Excitonic energy transfer process in Ne-Kr alloy studied by photon stimulated desorption of metastable atoms" J.Elect.Spectr.Rel.Phen.80. 101-104 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] E.V.Savchenko, T.Hirayama, A.Hayama, T.Koike, T.Kuninobu, I.Arakawa, K.Mitsuke, and M.Sakurai: "Long life-time emission of the excited species ejected from the surface of solid Ne." Surf.Sci.390. 261-265 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Hirayama, A.Hayama, T.Koike, T.Kuninobu, I.Arakawa, K.Mitsuke, M.Sakurai, and E.V.Savchenko: "Absolute desorption yield of metastable atoms from the surface of solid rare gases induced by exciton creation" Surf.Sci.390. 266-271 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Kuninobu, A.Hayama, T.Hirayama, and I.Arakawa: "Desorption of metastable species induced by electronic excitation at the surface of solid krypton with physisorbed hydrogen" Surf.Sci.390. 272-276 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] I.Arakawa: "Exciton induced desorption at the surface of rare gas solids" Molecular Crystals and Liquid Crystals. (to be published). (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A.Hayama, T.Kuninobu, T.Hirayama, and I.Arakawa: "Desorption of metastable particles induced by electronic excitation at the surface of rare gas solids with hydrogen physisorbed" J.Vac.Sci.Technol.A. 16 (to be published). (1998)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-16  

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