title: Synthesis of a double spiro-polyindenofluorene with a stable blue emission.
abstract: [reaction: see text] A novel polyindenofluorene containing a double spiro-anthracene structure with solublizing alkyl groups was synthesized. Enhanced spectral stability of the polymer was investigated by heat treatment and photoirradiation in air. The EL spectrum of the polymer showed an enhanced sensitivity to the human eye and good color purity as a blue-emitting material.
authors.affiliation: Center for Frontier Materials, Department of Materials Science and Engineering, Gwangju Institute of Science and Technology, 1 Oryong-dong, Buk-gu, Gwangju, Korea.
authors.forename: Doojin
authors.initials: D
authors.lastname: Vak
authors.forename: Bogyu
authors.initials: B
authors.lastname: Lim
authors.forename: Soo-Hyoung
authors.initials: SH
authors.lastname: Lee
authors.forename: Dong-Yu
authors.initials: DY
authors.lastname: Kim