Micro鈥揘anosized Nontraditional Evaporated Structures Based on Closely Packed Monolayer Binary Colloidal Crystals and Their Fine Structure Enhanced Properties

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• 作者：Junfeng Zheng ; Zhigao Dai ; Fei Mei ; Xiangheng Xiao ; Lei Liao ; Wei Wu ; Xinyue Zhao ; Jianjian Ying ; Feng Ren ; Changzhong Jiang
• 刊名：Journal of Physical Chemistry C
• 出版年：2014
• 出版时间：September 4, 2014
• 年：2014
• 卷：118
• 期：35
• 页码：20521-20528
• 全文大小：547K
• ISSN：1932-7455

文摘

Interest in monolayer binary colloidal crystals (bCCs) has long been motivated by their wide applications. Large-area various monolayer bCC patterns are self-assembled in air鈥搘ater interface and reveal that the structure of closely packed large polystyrene (PS) colloidal spheres is vital to the formation of bCCs. Small spheres may have very limited influence on the final close-packed structure of large spheres; therefore, the periodically ordered bCC patterns can be designed by choosing large colloidal spheres with the needed size. After oxygen plasma treatment, various controllable morphologies of nanoparticles can be achieved by the etched spheres acting as a template during the metal deposition. On the basis of the complex bCC patterns and subsequent oxygen plasma processing, this work points to a new method of designing the dimension and separation of nontraditional evaporated structures, including dot, strip, and block, which demonstrate fine structure enhanced performance. The experimental results are further supported by theoretical calculations.