科研之友
微信
新浪微博
Facebook
分享链接
摘要
Identically oriented NaCl nanocrystallites have been grown on mica surfaces based on a facile solution-evaporated method. With an increase in humidity, the morphology of the NaCl nanocrystallites evolves in succession from triangular pyramids to cubic islands and then to long lines with lengths of up to millimeters. These nanocrystallites can self-assemble into highly ordered arrays with large spatial extents of similar to 10 mm(2) under high humidity conditions when the value of relative humidity is higher than 40%. Their morphology transitions and self-assemblies can be understood in terms of controlled epitaxial crystallization together with water adsorption at the surface of the growing nanocrystallites.
- 出版日期2008-5-22
