Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 32, Pages 17904-17909Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b04496
Keywords
smart windows; dye-doped PDLC; polymer-dispersed liquid crystal (PDLC); core-shell structure; polyurethane capsule; optical materials
Funding
- National Research Foundation of Korea (NRF) - Ministry of Science, ICT AMP
- Future Planning [2014R1A5A1009799]
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A dye-doped polymer-dispersed liquid crystal (PDLC) is an attractive material for application in smart windows. Smart windows using a PDLC can be operated simply and have a high contrast ratio compared to those of other devices that employed photochromic or thermochromic material. However, in conventional dye-doped PDLC methods, dye contamination can cause problems and has a limited degree of commercialization of electric smart windows. Here, we report on an approach to resolve dye-related problems by encapsulating the dye in monodispersed capsules. By encapsulation, a fabricated dye-doped PDLC had a contrast ratio of >120 at 600 urn. This fabrication method of encapsulating the dye in a core shell structured microcapsule in a dye-doped PDLC device provides a practical platform for dye-doped PDLC-based smart windows.
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