title: Magnetoresponsive discoidal photonic crystals toward active color pigments.
abstract: Photonic microdisks with a multilayered structure are designed from photocurable suspensions by step-by-step photolithography. In each step of photolithography, either a colloidal photonic crystal or a magnetic-particle-laden layer is stacked over the windows of a photomask. Sequential photolithography enables the creation of multilayered photonic microdisks that have brilliant structural colors that can be switched by an external magnetic field.
authors.affiliation: Department of Chemical and Biomolecular, Engineering and KINC, KAIST, Daejeon, 305-701, Korea.
authors.forename: Hye Soo
authors.initials: HS
authors.lastname: Lee
authors.forename: Ju Hyeon
authors.initials: JH
authors.lastname: Kim
authors.forename: Joon-Seok
authors.initials: JS
authors.lastname: Lee
authors.forename: Jae Young
authors.initials: JY
authors.lastname: Sim
authors.forename: Jung Yoon
authors.initials: JY
authors.lastname: Seo
authors.forename: You-Kwan
authors.initials: YK
authors.lastname: Oh
authors.forename: Seung-Man
authors.initials: SM
authors.lastname: Yang
authors.forename: Shin-Hyun
authors.initials: SH
authors.lastname: Kim
keywords: colloidal crystals; lithography; magnetic functionality; photonic crystals; structural color