title: Fabrication of silica glass containing yellow oxynitride phosphor by the sol-gel process.
abstract: We have prepared silica glass by the sol-gel method and studied its ability to disperse the Ca-α-SiAlON:Eu2+phosphor for application in white light emitting diodes (LEDs). The emission color generated by irradiating doped glass with a blue LED at 450 nm depended on the concentration of SiAlON and the glass thickness, resulting in nearly white light. The luminescence efficiency of 1-mm-thick glass depended on the SiAlON concentration, and was highest at 4 wt% SiAlON.
authors.affiliation: National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
authors.forename: Hiroyo
authors.initials: H
authors.lastname: Segawa
authors.affiliation: National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan; University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan.
authors.forename: Hisato
authors.initials: H
authors.lastname: Yoshimizu
authors.affiliation: National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
authors.forename: Naoto
authors.initials: N
authors.lastname: Hirosaki
authors.affiliation: National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan; University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan.
authors.forename: Satoru
authors.initials: S
authors.lastname: Inoue
keywords: SiAlON; silica glass; sol–gel process; white LED