Department of Materials Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Tokyo 125-8585, Japan.
Langmuir. 2013 Jun 25;29(25):7743-8. doi: 10.1021/la400520m. Epub 2013 Jun 14.
We discuss a "soft" liquid-phase adsorption (SLPA) technique for the fabrication of organic films on wettability-patterned templates by using methanol/hexane and toluene/water emulsions. The emulsions are stable for several hours at room temperature, and the diameters of the dispersed phase are estimated to be several micrometers using dynamic light scattering. The templates are fabricated by exposing self-assembled monolayers to an ultraviolet/ozone atmosphere through a shadow mask. Fluorescent dye and semiconductor polymer films are formed selectively on the hydrophilic region of the substrates and the hydrophobic region of the self-assembled monolayer, respectively. The thickness is significantly larger than those of the films fabricated by conventional film-forming techniques such as spin-coating and dip-coating, respectively. These patterned films serve as photoluminescent films. These results demonstrate that the SLPA technique allows for the fabrication of organic films on wettability-patterned templates using solution-processable materials. This technique will find application to the fabrication of electronic and photonic devices with small material consumption and few film-forming processes.
我们讨论了一种“软”液相吸附（SLPA）技术，用于通过甲醇/己烷和甲苯/水乳液在润湿性图案化模板上制造有机膜。在室温下，乳液稳定数小时，使用动态光散射估计分散相的直径约为几微米。模板通过使用掩模将自组装单层暴露于紫外线/臭氧气氛中来制造。荧光染料和半导体聚合物膜分别选择性地形成在基底的亲水区域和自组装单层的疏水区上。厚度明显大于旋涂和浸涂等常规成膜技术所形成的膜的厚度。这些图案化的膜用作发光膜。这些结果表明，SLPA 技术允许使用溶液处理材料在润湿性图案化模板上制造有机膜。该技术将应用于制造具有小材料消耗和少的成膜工艺的电子和光子器件。
