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Updated: Mar 7, 2026

Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
Insights into the discrepant luminescence for BaSiO3 :Eu2+ phosphors prepared by solid-state reaction and
Jiao Xu1, Yang Zhao2, Jingjing Chen1
1Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, People's Republic of China.
Abstract:
Two synthesis routes, solid-state reaction and precipitation reaction, were employed to prepare BaSiO3 :Eu2+ phosphors in this study. Discrepancies in the luminescence green emission at 505 nm for the solid-state reaction method sample and in the yellow emission at 570 nm for the sample prepared by the precipitation reaction method, were observed respectively. A detail investigation about the discrepant luminescence of BaSiO3 :Eu2+ phosphors was performed by evaluation of X-ray diffraction (XRD), photoluminescence (PL)/photoluminescence excitation (PLE), decay time and thermal quenching properties. The results showed that the yellow emission was generated from the BaSiO3 :Eu2+ phosphor, while the green emission was ascribed to a small amount of Ba2 SiO4 :Eu2+ compound that was present in the solid-state reaction sample. This work clarifies the luminescence properties of Eu2+ ions in BaSiO3 and Ba2 SiO4 hosts.
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