1994 Fiscal Year Final Research Report Summary
Development of a Novel Multi-Functionalized System for Surface Reaction Analysis in Photo excited Epitaxy
| Project/Area Number |
05554019
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
機能・物性・材料
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| Research Institution | The University of Tokyo |
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Principal Investigator |
IWASAWA Yasuhiro The University of Tokyo, Graduate School of Science, Professor, 大学院・理学系研究科, 教授 (40018015)
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| Co-Investigator(Kenkyū-buntansha) |
SASAKI Takehiko The University of Tokyo, Graduate School of Science, Assistant, 大学院・理学系研究科, 助手 (90242099)
ONISHI Hiroshi The University of Tokyo, Graduate School of Science, Assistant, 大学院・理学系研究科, 助手 (20213803)
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| Project Period (FY) |
1993 – 1994
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| Keywords | photo induced epitaxy / electron stimulated desorption / reflection absorption infrared spectroscopy / scanning tunneling microscopy / solid surface / surface reaction / silicon / organometallic compound |
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| Research Abstract |
The investigators developed a Time-of-Flight Fourier Transformed Ion Energy Analyzer for space-resolved and energy-resolved observation of products in electron-or photo-stimulated desorption. In the present project, a multi-functionalized ultrahigh vacuum system was built to observe the coordination, energy state, and structure of absorbed reaction intermediates, by combining the analyzer with an Reflection Absorption Infared Spectroscope (RAIRS) .
The RAIRS with a reaction chamber allowed us to observe in-situ surface reaction in atmospheric reactant ambient. The ion analyzer operated with pulsed electron beam enabled the detection of reaction intermediate in a time resolution as small as 20 ms.
As the developing the system, thermal and photo induced reaction of alkygallium compounds on a Si (111) - (7*7) surface was studied by scanning tunneling spectroscopy (STM) . The decomposition of individual trimethylgallium and triethylgallium molecule was imaged. The manipulation of adsorbed formate, a simple organic molecule, was also successfully examined on TiO_2 (110) .
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