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 language | English |
|---|---|
| Pages (from-to) | 14376-14382 |
| Number of pages | 7 |
| Journal | ACS Applied Materials & Interfaces |
| Volume | 11 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - 17 Apr 2019 |
Funding
This work was financially supported by the Netherlands Organization for Scientific Research (TOP-PUNT 718.016.003). The authors thank Audrey Debije-Popson and Michael Debije for valuable comments on the paper.
Keywords
- cholesteric liquid crystal
- photonic cross-communication
- photonic particles
- reflective coatings
- structural color
- suspension polymerization