Development of a Novel Multi-Functionalized System for Surface Reaction Analysis in Photo excited Epitaxy

开发用于光激发外延表面反应分析的新型多功能系统

• 批准号: 05554019
• 负责人: IWASAWA Yasuhiro
• 金额: $ 6.08万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05554019/
• 关键词: photo induced epitaxy; electron stimulated desorption; reflection absorption infrared spectroscopy; scanning tunneling microscopy; solid surface; surface reaction; silicon; organometallic compound; 光励起選択エピタキシー; 角度分解刺激脱離イオン分光法; 反射型赤外吸収分光法; 飛行時間フ

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) .

研究人员开发了飞行器傅立叶变换的离子能量分析仪，用于在电子或光刺激的解吸中对产物的太空分辨和能量分辨的观察。在本项目中，通过将分析仪与反射吸收率炎症光谱仪（Rairs）相结合，构建了一个多功能超高真空系统，以观察吸收反应中间体的配位，能量状态和结构。用脉冲电子束运行的离子分析仪可在时间分辨率中检测反应中间体20 ms。随着系统的发展，通过扫描隧道光谱法（STM）研究了SI（111） - （7*7）表面的藻类化合物的热和照片诱导的反应。成像单个三甲基甲基和三甲基gallium分子的分解。在TIO_2（110）上也成功检查了吸附的甲酸盐（一种简单的有机分子）的操纵。

项目成果

佐々木岳彦: "表面吸着種解析法としての電子刺激脱離法の最近の発展" 化学. 49. 450-451 (1994)

Takehiko Sasaki：“电子刺激解吸法作为分析表面吸附物质的方法的最新进展”，Chemistry 49. 450-451 (1994)。

Takehiko Sasaki: "A Reactive Oxygen Adlayer on Cu ( 110 ) at 100K" Surface Science. 316. L1081-L1087 (1994)

Takehiko Sasaki：“100K 下 Cu (110) 上的活性氧吸附层”表面科学。

Ken-ichi Fukui: "Chemisorption of CO and H_2 on clean and oxygen-modified Mo ( 112 )" Surface Science. 281. 241-252 (1993)

Ken-ichi Fukui：“清洁和氧改性的 Mo (112) 上 CO 和 H_2 的化学吸附”表面科学。

Ken-ichi Fukui: "Novel Reaction Path Induced by Selective Blocking of Surface Atoms : Methanol Dehydrogenation on Mo (112)" Surface Science. 295. 160-168 (1993)

Ken-ichi Fukui：“选择性阻断表面原子诱导的新反应路径：Mo (112) 上的甲醇脱氢”表面科学。

Takehiko Sasaki: "A Reactive Oxygen Adlayr on Cu (100) at 100 K" Surface Science. 361. L1081-L1087 (1994)

Takehiko Sasaki：“100 K 下 Cu (100) 上的活性氧 Adlayr”表面科学。