时 间：二〇一二年二月二十三日 下午14：30-15：30
地 点：科技大厦1313
主讲人： Wonho Jhe教授
题 目：Time-resolved study of a nanoscale water bridge: The formation and rupture
摘 要：
The formation and rupture processes of nanoscale water bridges are studied by means of time-resolved dynamic force microscopy. The temporal behaviors of the water bridges, formed between the tip and the substrate, are measured by a force sensor at nanometric gap distances. The dynamic processes such as nucleation, growth, evaporation and rupture of nanoscale water bridges are observed by using this technique. In addition, the thermodynamic stability of the water bridge is also discussed considering the hysteresis curves traced by the tip during the approach-retraction cycle. We believe that one can study not only the mechanical behavior but also the temporal dynamic processes of nanoscale liquid bridges of with this technique.
Wonho Jhe 教授 简介：
Wonho Jhe is a Professor of Physics Department, Seoul National University (April 2002- ), Director of Center for Near-field Atom-Photon Technology (Oct. 1997 - 2006), and Director of Center for Nano-liquid (2007 - 2012) .
Prizes and Fellowship:
Mildred Jordan Tuttle Fellowship, Yale University (1984 - 1986)
Visiting Fellow, JILA, (University of Colorado, 2000-2002)
2006 Recipient of the National Academy of Sciences Prize of Korea (2006)
2006 Award of One of 50 Best Research Achievements in Korea, KOSEF (2006)
2007 Award of One of 100 Excellent Research Achievements, KRF (2007)
化学工程学院
张现仁教授 邀请
二〇一二年二月二十一日
