title: Solid-state combinatorial chemistry of Eu(2+)-doped Sr-Al-Si-O-N phosphors.
abstract: Sr-Al-Si-O-N composition space was screened by a solid state combinatorial chemistry. For this sake, powder mixtures of Sr3N2, alpha-Si3N4, AIN and Eu3N2 was fired at 1500 degrees C-1900 degrees C for 2 h under 1.0 Mpa N2 using a gas pressurized sintering (GPS) furnace. The resultant phosphors were phase-identified, and the photo luminescence was examined. The Sr-Al-Si-O-N phosphors are blue-Green and orange in color and emit in the region of 520-630 nm depending on synthesized temperature. Considering an intense excitation band in blue LED and emission band, these materials can be used as novel conversion phosphor for White-LEDs, if the luminance was improved.
authors.affiliation: Department of Printed Electronics Engineering, World Class University (WCU) program, Sunchon National University, Sunchon, 540-742 Jeonnam, Republic of Korea.
authors.forename: Ji Woong
authors.initials: JW
authors.lastname: Park
authors.forename: Bo Yong
authors.initials: BY
authors.lastname: Han
authors.forename: Yang Soo
authors.initials: YS
authors.lastname: Kim
authors.forename: Kee-Sun
authors.initials: KS
authors.lastname: Sohn