Patterned full-color reflective coatings based on photonic cholesteric liquid-crystalline particles

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Abstract

An easy approach to pattern angular-independent, multicolor reflective coatings based on cholesteric liquid-crystalline (CLC) particles is presented. CLC particles are fabricated by emulsification, which is a scalable, cost-effective, and environmentally friendly synthesis process. The photonic particles can be easily dispersed in a binder to produce reflective coatings. Furthermore, a simple strategy to remove the photonic cross-communication between the particles has been developed. By incorporating a reactive blue/green absorbing dye into the network structure of the CLC particles the cross-communication is absorbed by the dye, leading to well-defined structural colors. Moreover, we demonstrate the possibility of producing patterned multicolor images by controlled swelling of the particles by the binder.

Original languageEnglish
Pages (from-to)14376-14382
Number of pages7
JournalACS Applied Materials & Interfaces
Volume11
Issue number15
DOIs
Publication statusPublished - 17 Apr 2019

Keywords

  • cholesteric liquid crystal
  • photonic cross-communication
  • photonic particles
  • reflective coatings
  • structural color
  • suspension polymerization

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