Hybrid top-down/bottom-up strategy using superwettability for the fabrication of patterned colloidal assembly

Yuezhong Wang, Cong Wei, Hailin Cong, Qiang Yang, Yuchen Wu, Bin Su, Yongsheng Zhao, Jingxia Wang, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

17 Citations (Scopus)

Abstract

Superwettability of substrates has had a profound influence on the production of novel and advanced colloidal assemblies in recent decades owing to its effect on the spreading area, evaporation rate, and the resultant assembly structure. In this paper, we investigated in detail the influence of the superwettability of a transfer/template substrate on the colloidal assembly from a hybrid top-down/bottom-up strategy. By taking advantage of a superhydrophilic flat transfer substrate and a superhydrophobic groove-structured silicon template, the patterned colloidal microsphere assembly was formed including linear and mesh-, cyclic-, and multistopband assembly arrays of microspheres, and the optic-waveguide of a circular colloidal structure was demonstrated. We believed this liquid top-down/bottom-up strategy would open an efficient avenue for assembling/integrating microspheres building blocks into device applications in a low-cost manner.

Original languageEnglish
Pages (from-to)4985-4993
Number of pages9
JournalACS Applied Materials & Interfaces
Volume8
Issue number7
DOIs
Publication statusPublished - 24 Feb 2016
Externally publishedYes

Keywords

  • colloidal assembly
  • optic waveguide
  • pattern colloidal
  • superwettability
  • top-down/bottom-up

Cite this