Narayanan Suresh, Wang Jin, Lin Xiao-Min
Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA.
Phys Rev Lett. 2004 Sep 24;93(13):135503. doi: 10.1103/PhysRevLett.93.135503.
The nucleation and growth kinetics of highly ordered gold nanocrystal superlattices during the evaporation of nanocrystal colloidal droplets was elucidated by in situ time-resolved small-angle x-ray scattering. We demonstrated for the first time that the evaporation rate can affect the dimensionality of the superlattices. The formation of two-dimensional nanocrystal superlattices at the liquid-air interface of the droplet has exponential growth kinetics that originates from interface crushing.
通过原位时间分辨小角X射线散射，阐明了纳米晶体胶体液滴蒸发过程中高度有序的金纳米晶体超晶格的成核和生长动力学。我们首次证明了蒸发速率会影响超晶格的维度。液滴液-气界面处二维纳米晶体超晶格的形成具有源于界面破碎的指数生长动力学。
