한국진공학회:학술대회논문집 (Proceedings of the Korean Vacuum Society Conference)
- 한국진공학회 2009년도 제38회 동계학술대회 초록집
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- Pages.353-353
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- 2010
Scanning Tunneling Microscopy Study of Alcohol Adsorption on NiAl(110) Deposited by Pulsed Injection
- Choi, Eun-Yeoung (Institute of Physics and Applied Physics, Yonsei University) ;
- Lee, Youn-Joo (Institute of Physics and Applied Physics, Yonsei University) ;
- Lyo, In-Whan (Institute of Physics and Applied Physics, Yonsei University)
- 발행 : 2010.02.17
초록
Alcohol is a vesatile polar solvent for molecules. As a preparation to deposit large molecules, we studied interaction of solvent molecules on metallic surface. in this work, we report on methanol adsorption on NiAl(110) with scanning tunneling microscopy (STM). These alcohol solvent molecules were deposited by a pulse injection method suitable for deposition of thermally unstable molecules. The injection of liquid alcohol onto the substrate in UHV was performed by using a high-speed solenoid valve with the back-pressure reduced down to 100 Torr. This technique allowed precise control over the amount of dosing of molecules to less than 1 L. Alcohol-induced features, attributed to methoxy, were found on bare NiAl(110) surface.
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