title: Synthesis and properties of a polyhedral oligomeric silsesquioxane-based new light-emitting nanoparticle.
abstract: A polyhedral oligomeric silsesquioxane (POSS)-based electroluminescent nanoparticle, POSS-NPA, which contains anthracenenaphthyl chromophores on each of its eight arms, was easily prepared via the hydrosilylation reaction between octakis(dimethylsiloxy)silsesquioxane and allyl-functionalized 9-naphthalene-2-yl-10-phenyl anthracene chromophores. POSS-NPA was completely soluble in common organic solvents such as chloroform, THF, toluene, p-xylene, and chlorobenzene, and showed good film-forming properties on a quartz plate or an indium tin oxide (ITO) plate, i.e., it has good solution processing properties. The UV-visible absorption and the photoluminescence (PL) emission maxima of POSS-NPA in chlorobenzene solution were found to be 378 nm and 433 nm while those of POSS-NPA in the solid state were 379 and 464 nm, respectively. An electroluminescent (EL) device with the configuration of ITO/PEDOT:PSS/POSS-NPA (50 nm)/BAIq (40 nm)/LiF (1 nm)/Al (120 nm) was also fabricated and the blue light emission was successfully obtained.
authors.affiliation: Department of Applied Chemistry, Kumoh National Institute of Technology, Gumi 730-701, Korea.
authors.forename: Jae-Hoon
authors.initials: JH
authors.lastname: Eom
authors.forename: Dongbo
authors.initials: D
authors.lastname: Mi
authors.forename: Moo-Jin
authors.initials: MJ
authors.lastname: Park
authors.forename: Hoon-Je
authors.initials: HJ
authors.lastname: Cho
authors.forename: Jonghee
authors.initials: J
authors.lastname: Lee
authors.forename: Jeong-Ik
authors.initials: JI
authors.lastname: Lee
authors.forename: Hye Yong
authors.initials: HY
authors.lastname: Chu
authors.forename: Hong-Ku
authors.initials: HK
authors.lastname: Shim
authors.forename: Do-Hoon
authors.initials: DH
authors.lastname: Hwang