1994 Fiscal Year Final Research Report Summary
Elementary surface photo-induced reactions : Study by laser and surface spectroscopy
| Project/Area Number |
04045011
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | University-to-University Cooperative Research |
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| Research Institution | Hokkaido University |
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Principal Investigator |
KAWASAKI Masahiro Research Institute for Electronic Science, Hokkaido University, Professor, 電子科学研究所, 教授 (70110723)
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| Co-Investigator(Kenkyū-buntansha) |
SPRINGSTEEN Larry Department of Chemistry, Cornell University Research Associate, 化学科, 助手
HO Wilson Department of Physics, Cornell University Associate Professor, 物理学科, 助教授
HOUSTON Paul Department of Chemistry, Cornell University Professor, 化学科, 教授
OHASHI Masafumi Research Institute for Electronic Science, Hokkaido University, Fellowships for, 電子科学研究所, 日本学術振興会特別研
MIZUNO Seigi Research Center for Catalysis, Hokkaido University, Research Associate, 触媒化学研究センター, 助手 (60229705)
HAYAKAWA Kazunobu Research Center for Catalysis, Hokkaido University, Professor, 触媒化学研究センター, 教授 (80218552)
MATSUMI Yutaka Research Institute for Electronic Science, Hokkaido University, Associate Profes, 電子科学研究所, 助教授 (30209605)
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| Project Period (FY) |
1992 – 1994
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| Keywords | Surface-phase / Adsorbed molecule / Laser-induced Fluorescence / Photodissociation / OCS / Photoirradiatoin / Cl / GaAs |
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| Research Abstract |
Surface photochemistry concerns photoinduced processes at gas-solid interfaces. This year, we have investigated desorption, dissociation, and reaction of adsorbed molecules initiated by ultraviolet photoirradiation. Especially we compare the experimental results between gas- and surface-phase. Since carbon monoxide has been a pet molecule to surface scientists, CO was detected by laser-induced fluorescence technique, which came from the 230 nm photodissociation of OCS.Our results are different from those reported by our counter scientist Prof.Houston of Cornell Univcersity. Based on discussion, our conclusion is that a) we have to determine the electronic state and molecular structure of the photoprepared OCS,and b) photodissociation of OCS adsorbed on a surface will be helpful to interpret the discrepancy between our and their results. In Hokkaido, we have constructed a surface photodissociation machine to continue the OCS photodissociation. In cooperation with Prof. Ho of Cornell University, we have studied photoirradiation effect on Cl-atom-etched GaAs substrates and found significant wavelength effect.
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Research Products
(6 results)
