title: Chiral nematic mesoporous films of ZrO₂:Eu³⁺: new luminescent materials.
abstract: Integration of luminescent rare earth ions and iridescence into a zirconium oxide photonic material is attractive for the design of new optical devices. The free-standing chiral nematic mesoporous films of ZrO2:Eu(3+) are assembled by a hard-templating approach using nanocrystalline cellulose-templated silica. The ZrO2:Eu(3+) films show tunable optical properties. The chiral nematic structured ZrO2:Eu(3+) exhibits selective suppression of the spontaneous emission of Eu(3+) and the capability to modulate the lifetime of luminescent Eu(3+).
authors.affiliation: State Key Lab of Inorganic Synthesis and Preparative Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China. yanxu@jlu.edu.cn.
authors.forename: Guang
authors.initials: G
authors.lastname: Chu
authors.forename: Jing
authors.initials: J
authors.lastname: Feng
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.forename: Xiao
authors.initials: X
authors.lastname: Zhang
authors.forename: Yan
authors.initials: Y
authors.lastname: Xu
authors.forename: Hongjie
authors.initials: H
authors.lastname: Zhang
mesh_terms: D002482:Cellulose / Q000737:chemistry; D005063:Europium / Q000737:chemistry*; D049449:Luminescence; D049408:Luminescent Agents / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry / Q000648:ultrastructure; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry; D015040:Zirconium / Q000737:chemistry*
chemical_list: D049408:Luminescent Agents; D005063:Europium; D012822:Silicon Dioxide; D002482:Cellulose; D015040:Zirconium; C028541:zirconium oxide