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Micro–Nanosized Nontraditional Evaporated Structures Based on Closely Packed Monolayer Binary Colloidal Crystals and Their Fine Structure Enhanced Properties
journal contribution
posted on 2014-09-04, 00:00 authored by Junfeng Zheng, Zhigao Dai, Fei Mei, Xiangheng Xiao, Lei Liao, Wei Wu, Xinyue Zhao, Jianjian Ying, Feng Ren, Changzhong JiangInterest
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–water 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.