The controlled evolution of a polymer single crystal
The controlled evolution of a polymer single crystal
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DOI：
10.1126/science.1109487
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发表时间：
2005-03-18
期刊：
影响因子：
56.9
通讯作者：
Mirkin, CA
中科院分区：
文献类型：
--
作者：
Liu, XG;Zhang, Y;Mirkin, CA
我们提出了一种用于控制聚合物晶体生长的引发和动力学的方法，使用蘸笔纳米光刻和涂有聚-DL-赖氨酸氢溴酸盐的原子力显微镜尖端。三角棱镜的聚合物外延生长在新鲜裂开的云母基板上，它们的面内和面外的生长速率可以通过光栅扫描整个基板上的涂层尖端来控制。同时记录了原子力显微镜图像，提供了一组该过程的摄影图像，因为它跨越了纳米到微米的长度尺度，作为环境条件的函数。
We present a method for controlling the initiation and kinetics of polymer crystal growth using dip-pen nanolithography and an atomic force microscope tip coated with poly-DL-lysine hydrobromide. Triangular prisms of the polymer epitaxially grow on freshly cleaved mica substrates, and their in-plane and out-of-plane growth rates can be controlled by raster scanning the coated tip across the substrate. Atomic force microscope images were concomitantly recorded, providing a set of photographic images of the process as it spans the nanometer-to micrometer-length scales as a function of environmental conditions.