title: Synthesis, structure, and luminescence properties of SrSiAl2O3N2:Eu(2+) phosphors for light-emitting devices and field emission displays.
abstract: A series of SrSiAl2O3N2:Eu(2+) (0.005 ≤x≤ 0.05) phosphors were successfully synthesized through a pressureless, facile, and efficient solid state route. The crystal structure, band structure, and their photoluminescence and cathodoluminescence properties were investigated in detail. The phosphors exhibit rod shape morphology with a uniform Eu(2+) distribution. Under n-UV excitation the emission spectra shift from 477 to 497 nm with an increase of Eu(2+) concentration. The concentration quenching mechanism of Eu(2+) emission was dominated by the dipole-dipole interaction. The thermal stability is comparable to that of the commercial Ba2SiO4:Eu(2+) phosphor. The phosphor also exhibits high current saturation and high resistance under low voltage electron bombardment. All the results indicate that the SrSiAl2O3N2:Eu(2+) phosphors can be considered as candidates for application in both white LEDs and FEDs.
authors.affiliation: Key Laboratory for Special Function Materials and Structural Design of the Ministry of the Education, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China. wyh@lzu.edu.cn.
authors.forename: Xicheng
authors.initials: X
authors.lastname: Wang
authors.forename: Zhengyan
authors.initials: Z
authors.lastname: Zhao
authors.forename: Quansheng
authors.initials: Q
authors.lastname: Wu
authors.forename: Yanyan
authors.initials: Y
authors.lastname: Li
authors.forename: Chuang
authors.initials: C
authors.lastname: Wang
authors.forename: Aijun
authors.initials: A
authors.lastname: Mao
authors.forename: Yuhua
authors.initials: Y
authors.lastname: Wang