Self-Assembly and Hierarchical Patterning of Aligned Organic Nanowire Arrays by Solvent Evaporation on Substrates with Patterned Wettability
Self-Assembly and Hierarchical Patterning of Aligned Organic Nanowire Arrays by Solvent Evaporation on Substrates with Patterned Wettability
复制标题
通过溶剂蒸发在具有图案化润湿性的基板上进行对齐有机纳米线阵列的自组装和分层图案化
DOI：
10.1021/am4012885
复制
发表时间：
2013-06-26
影响因子：
9.5
通讯作者：
Zhang, Xiao-Hong
中科院分区：
文献类型：
--
作者：
Bao, Rong-Rong;Zhang, Cheng-Yi;Zhang, Xiao-Hong
一维有机纳米结构在明确定义的位置上的受控生长和排列大大阻碍了纳米结构用于电子和光电子应用的集成。在这里，我们展示了一个简单的过程，以实现有机纳米线的生长，对齐和分层图案化的基板上的表面润湿性的控制模式。第一级图案由基底图案的润湿性限定。有机纳米结构优先生长在溶剂挥发区域。第二级图案是通过在蒸发期间控制溶液接触线的形状和移动而沉积的对准的有机纳米线的图案化。这一过程是通过控制方法或垂直蒸发法控制的。因此，将这两个层次的图案结合起来，可以得到各种新的有机纳米结构图案。事实证明，这种简单的方法是一种通用方法，可应用于其他有机纳米结构系统。使用所制备的图案化纳米线阵列，光电子器件（光电探测器）很容易制造。因此，所提出的制备高度有序的有机纳米结构图案的简单、大规模、低成本方法在各种电子和光电器件中具有很高的潜在应用。
The controlled growth and alignment of one-dimensional organic nanostructures at well-defined locations considerably hinders the integration of nanostructures for electronic and optoelectronic applications. Here, we demonstrate a simple process to achieve the growth, alignment, and hierarchical patterning of organic nanowires on substrates with controlled patterns of surface wettability. The first-level pattern is confined by the substrate patterns of wettability. Organic nanostructures are preferentially grown on solvent wettable regions. The second-level pattern is the patterning of aligned organic nanowires deposited by controlling the shape and movement of the solution contact lines during evaporation on the wettable regions. This process is controlled by the cover-hat-controlled method or vertical evaportation method. Therefore, various new patterns of organic nanostructures can be obtained by combing these two levels of patterns. This simple method proves to be a general approach that can be applied to other organic nanostructure systems. Using the as-prepared patterned nanowire arrays, an optoelectronic device (photodetector) is easily fabricated. Hence, the proposed simple, large-scale, low-cost method of preparing patterns of highly ordered organic nanostructures has high potential applications in various electronic and optoelectronic devices.