Three-Dimensional Colloidal Crystal-Assisted Lithography for Two-Dimensional Patterned Arrays
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- 作者：Zhiqiang Sun ; Yunfeng Li ; Yanfang Wang ; Xin Chen ; Junhu Zhang ; Kai Zhang ; Zifeng Wang ; Chunxiao Bao ; Jianbo Zeng ; Bing Zhao ; Bai Yang
- 刊名：Langmuir
- 出版年：2007
- 出版时间：October 9, 2007
- 年：2007
- 卷：23
- 期：21
- 页码：10725 - 10731
- 全文大小：598K
- 年卷期：v.23,no.21(October 9, 2007)
- ISSN：1520-5827
文摘
In this paper, we report our recent work on preparing two-dimensional patterned microstructure arrays usingthree-dimensional colloidal crystals as templates, namely, colloidal crystal-assisted lithography. Two alternative processesare described and involved in colloidal crystal-assisted lithography. One is based upon imprinting the polymer filmswith three-dimensional silica colloidal crystals, and the other is based upon chemically depositing Ag microstructureson Au substrates covered by polymer colloidal crystals. By varying the experimental conditions in the colloidalcrystal-assisted lithography process, we can intentionally control the morphologies of the resulting microstructures.The resultant Ag-coated Au substrates can be used as surface-enhanced Raman scattering substrates, and they wouldprovide an ideal system for the mechanism study of surface-enhanced Raman scattering. We expect that colloidalcrystal-assisted lithography will be a versatile approach which can be applied to patterning other materials such asfunctional molecules, polymers, oxides, and metals.