[1Fp01-09] Surface Science(SS2) Chemical Property

[1Fp07] AFM characterization of ice under organic solvents

*Ryo Yanagisawa¹, Tadashi Ueda², Kei-ichi Nakamoto², Hiroshi Onishi^1,2, Taketoshi Minato² (1. Department of Science, Kobe University, 2. Institute for Molecular Science, National Institutes of Natural Sciences)

Ice provides one of most important molecular crystals in our life. Due to its critical role in science and engineering, a number of experimental studies have been conducted on ice–vacuum and also on ice–vapor interfaces. However, molecular-scale knowledge of the ice–water interface is still quite limited. The problem is that an ice–water interface fluctuates in space, even when the interface is held exactly at the freezing point. In addition, the interface is lost when its temperature deviates from the freezing point. In the present study, we performed atomic force microscope (AFM) imaging of ice films immersed in organic solvents. Films in contact with liquid octanol (C8H17OH), for instance, were stable at temperatures below the freezing point of ice (0 ºC) and above that of octanol (-16 ºC) to provide topographic images with a spatial resolution of 0.1 nm.