Properties of White Light Emitting Eu²⁺ , Mn²⁺ Co-Doped Ca₂SiO₃Cl₂ Phosphors Synthesized with Sol-Gel Method

Abstract:

The luminescent properties of Eu²⁺, Mn²⁺co-doped Ca₂SiO₃Cl₂ phosphors synthesized by the sol-gel method were investigated. The crystal structure, pattern and luminescence properties were characterized by the X-ray diffraction (XRD), scanning electron microscope (SEM), and photoluminescence (PL) testing. The result showed that pure Ca₂SiO₃Cl₂ was prepared at 570°C for 8h in the active carbon weak reducing atmosphere. The phosphor particles showed Eu²⁺ by the excitation spectrum located at 365nm found that spectra with an emission peak located at a 446nm and the other emission spectrum was dominated by the green peak located at 497nm. Due to the Eu²⁺ center transfer energy to the Mn²⁺ center that there be an emission spectrum peak located at 580nm. Three of emission spectrum peaks stacking to white light.

• Periodical: Advanced Materials Research (Volumes 239-242)
• Pages: 612-615
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.239-242.612
• Online since: May 2011
• Authors: Qing Ju Ning, Bang Qing Wang, Su Hang Gu, Fang Fang Guo
• Keywords: Ca₂Sio₃Cl₂, Eu²⁺, Mn²⁺Co-Doped, Photoluminescence (PL), Sol-Gel (SG)

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