摘要
Solid surfaces of HOPG, pure copper, chromium, zinc, copper and SUS304 steel were observed in ambient air with an a.c. non-contact mode of atomic force microscope(AFM). A type of film-like-domains (adsorptive) was detected on the above surfaces. The thickness of the adsorptive was about 1.2-2.4 nm in this case. The film-like-adsorptive was confirmed to be a liquid layer by the static contact-mode scanning, the measurement of the elasticity and viscosity images, and the detection of the condensation/ evaporation phenomena when the relative humidity changed. The liquid layer is considered to be condensed water covered with organic contaminant.
Solid surfaces of HOPG, pure copper, chromium, zinc, copper and SUS304 steel were observed in ambient air with an a.c. non-contact mode of atomic force microscope（AFM）. A type of film-like-domains （adsorptive） was detected on the above surfaces. The thickness of the adsorptive was about 1.2-2.4 nm in this case. The film-like-adsorptive was confirmed to be a liquid layer by the static contact-mode scanning, the measurement of the elasticity and viscosity images, and the detection of the condensation/evaporation phenomena when the relative humidity changed. The liquid layer is considered to be condensed water covered with organic contaminant.
出处
《中国有色金属学会会刊：英文版》
CSCD
2006年第B02期753-758,共6页
Transactions of Nonferrous Metals Society of China
基金
Part of this work was supported by MEXT.HAITEKU, 2004- JSPS Grant-in-Aid for scientific research(18560093)
关键词
固体表面
空气吸附
成分分析
原子力显微镜
XPS
水
有机污染物
atomic force microscope
a.c. non-contact mode
surface
water
organic contaminants
film-like-adsorptive
