Anomalous surface diffusion in nanoscale direct deposition processes

Anomalous surface diffusion in nanoscale direct deposition processes
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DOI:
10.1103/physrevlett.90.115505
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发表时间:
2003-03-21
影响因子:
8.6
通讯作者:
Hong, S
Hong, S
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Manandhar, P;Jang, J;Hong, S

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我们报告的第一个观察到的异常扩散在纳米尺度的直接沉积过程中,利用蘸笔纳米光刻(DPN)。DPN允许在平坦表面上绘制相当一般的纳米结构图案。在这里,我们证明实验,并从理论上讨论,在DPN中的分子墨水弱结合到表面的情况。我们观察到,1-十二胺在云母上的弱结合的情况下,发生异常扩散,导致近分形沉积图案。
We report the first observation of anomalous diffusion in nanometer scale direct deposition processes utilizing dip-pen nanolithography (DPN). DPN permits quite general nanostructure patterns to be drawn on flat surfaces. Here we demonstrate experimentally, and discuss theoretically, the situation in which the molecular ink in DPN binds weakly to the surface. We observe, for the weak-binding case of 1-dodecylamine on mica, that anomalous diffusion occurs, leading to nearly fractal deposition patterns.