title: Facile synthesis of luminescent and amorphous La₂O₃-ZrO₂:Eu³⁺ nanofibrous membranes with robust softness.
abstract: Novel luminescent and amorphous La2O3-ZrO2:Eu(3+) (LZE) nanofibrous membranes with robust softness are fabricated for the first time via a facile electrospinning technique. By incorporating zirconium oxide, the as-prepared lanthanum oxide nanofibrous membranes can be dramatically changed from extreme fragility to robust softness. Meanwhile, the softness and luminescent performance of LZE nanofibrous membranes can be finely controlled by regulating the doping concentration of zirconium oxide and europium in lanthanum oxide nanofibers. Additionally, the crystal structure analysis using X-ray diffractometer and high resolution transmission electron microscopy measurements have confirmed the correlation between the amorphous structure and softness. Furthermore, LZE membranes show the characteristic emission of Eu(3+) corresponding to (5)D(0, 1, 2)-(7)F(0, 1, 2, 3, 4) transitions due to an efficient energy transfer from O(2-) to Eu(3+). The LZE nanofibrous membranes with the optimum doping Eu(3+) concentration of 3 mol% exhibit excellent softness and luminescent properties, which make the materials to have potential applications in fluorescent lamps and field emission displays.
authors.affiliation: Department of BIN Fusion Technology, Chonbuk National University, Jeonju 561-756, Republic of Korea. khy@jbnu.ac.kr.
authors.forename: Weidong
authors.initials: W
authors.lastname: Han
authors.forename: Bin
authors.initials: B
authors.lastname: Ding
authors.forename: Mira
authors.initials: M
authors.lastname: Park
authors.forename: Fuhai
authors.initials: F
authors.lastname: Cui
authors.forename: Zafar Khan
authors.initials: ZK
authors.lastname: Ghouri
authors.forename: Prem Singh
authors.initials: PS
authors.lastname: Saud
authors.forename: Hak-Yong
authors.initials: HY
authors.lastname: Kim