单步垂直沉积自组装胶体晶体的统计表征
Statistical Characterization of Self-Assembled Colloidal Crystals by Single-Step Vertical Deposition
摘要:
我们统计的多层聚苯乙烯胶体晶体的自组装的特点,使用垂直沉积技术,与参数选择产生厚层的自组装晶体在一个沉积步骤。此外,使用光刻定向自组装方法,我们已经表明,在光刻定义的区域中的多层,连续的无裂纹域的大小可以比周围区域大许多倍。在一个单一的沉积步骤中,我们已经产生了直径为260 nm的聚苯乙烯球约30 - 40层厚的连续胶体晶体膜,具有80 - 100 $\upmu$ m的可控横向尺寸,而没有光刻,高达250 $\upmu$ m的光刻模板。
英文摘要:
We have statistically characterized the self-assembly of multi-layer polystyrene colloidal crystals, using the technique of vertical deposition, with parameters chosen to produce thick layers of self-assembled crystals in one deposition step. In addition, using a lithographically directed self-assembly method, we have shown that the size of multi-layer, continuous crack-free domains in lithographically defined areas can be many times larger than in the surrounding areas. In a single deposition step, we have produced continuous colloidal crystal films of 260 nm diameter polystyrene spheres approximately 30 -- 40 layers thick, with a controllable lateral size of 80 -- 100 $\upmu$m without lithography, and as high as 250 $\upmu$m with the lithographic template.
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