Title of Paper:Photoluminescence properties of SrSi2O2N2doped with divalent ytterbium phosphor in nitrogen-rich coordination

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Affiliation of Author(s):材料科学与技术学院

Journal:Key Eng Mat

Abstract:Yb2+-doped SrSi2O2N2had been successfully synthesized using a conventional solid-state reaction method under reducing atmosphere. The phase and luminescence properties of the SrSi2O2N2phosphors were investigated. Being an orange-red emitting phosphors, SrSi2O2N2:Yb was an emission peaking at 605 nm. With the increasing amount of Yb2+, the optical band gap of SrSi2O2N2was decreased. The optical band gap of SrSi2O2N2is decreased by Yb2+increasing. The luminescence spectra of the nitrogen-rich coordination of Yb2+in SrSi2O2N2can be promoted. The concentration quenching mechanism of Yb2+emission was responsible for the electric dipole-dipole interaction. © 2017 Trans Tech Publications, Switzerland.

ISSN No.:1013-9826

Translation or Not:no

Date of Publication:2017-01-01

Co-author:Gu, Xiguang,Yang, Fang

Correspondence Author:frl