Synthesis of Long Afterglow Photoluminescent Materials Sr2MgSi2O7∶Eu2+, Dy3+ by Sol-Gel Method

稀土学报(英文版), 2005, 23(3): 292-294.

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1.Department of Applied Chemistry, Shenyang Institute of Chemical Technology, Shenyang 110142, China

2.Department of Applied Chemistry, Shenyang Institute of Chemical Technology, Shenyang 110142, China;School of Materials and Metallurgy, Northeastern University, Shenyang 110006, China

3.School of Materials and Chemical Technology, Changchun University of Science and Technology, Changchun 130022, China

4.Department of Applied Chemistry, Shenyang Institute of Chemical Technology, Shenyang 110142, China;School of Materials and Metallurgy, Northeastern University, Shenyang 110006, China

5.College of Materials Science & Technology, Nanjing University of Technology, Nanjing 210009, China

6.School of Materials and Metallurgy, Northeastern University, Shenyang 110006, China

基金项目: the Science and Technology Bureau of Liaoning Province(2002016)

Synthesis of Long Afterglow Photoluminescent Materials Sr2MgSi2O7∶Eu2+, Dy3+ by Sol-Gel Method

Keywords： inorganic nonmetallic materials

Long afterglow photoluminescent materials Sr2MgSi2O7 doped with Eu2+, Dy3+ were prepared by sol-gel method. The synthesized samples were characterized by X-ray diffraction. The excitation spectrum, emission spectrum and long decay curve were measured and analyzed. XRD pattern indicates that phosphor is with Sr2MgSi2O7 crystal structure. The wide range of excitation wavelength indicates that luminescent material can be excited by light from ultraviolet ray to visible light. The main peak of emission spectrum is located at 466 nm. Sample excited by visible light can emit bright blue light, and the afterglow time lasts more than 8 h.

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Synthesis of Long Afterglow Photoluminescent Materials Sr2MgSi2O7∶Eu2+, Dy3+ by Sol-Gel Method

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