title: Fabrication of Microcapsules for Dye-Doped Polymer-Dispersed Liquid Crystal-Based Smart Windows.
abstract: 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 nm. 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.
authors.forename: Mingyun
authors.initials: M
authors.lastname: Kim
authors.forename: Kyun Joo
authors.initials: KJ
authors.lastname: Park
authors.forename: Seunghwan
authors.initials: S
authors.lastname: Seok
authors.forename: Jong Min
authors.initials: JM
authors.lastname: Ok
authors.forename: Hee-Tae
authors.initials: HT
authors.lastname: Jung
authors.affiliation: ‡Research Park, LG Chem, 188, Munji-ro, Yuseong-gu, Daejeon 305-738, Republic of Korea.
authors.forename: Jaehoon
authors.initials: J
authors.lastname: Choe
authors.forename: Dong Hyun
authors.initials: DH
authors.lastname: Oh
authors.forename: Do Hyun
authors.initials: DH
authors.lastname: Kim
keywords: core−shell structure; dye-doped PDLC; optical materials; polymer-dispersed liquid crystal (PDLC); polyurethane capsule; smart windows