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Journal of Sol-Gel Science and Technology

, Volume 44, Issue 2, pp 133–137 | Cite as

A new phosphor with flower-like structure and luminescent properties of Sr2MgSi2O7: Eu2+, Dy3+ long afterglow materials by sol–gel method

  • Huiming Ji
  • Guijiu Xie
  • Ying Lv
  • Huixiang Lu
Original Paper

Abstract

The flower-like phosphors of Sr2MgSi2O7: Eu2+, Dy3+ with high brightness and long afterglow were obtained by sol–gel method. X-ray diffraction pattern (XRD) shows that single-phased Sr2MgSi2O7 phosphor is prepared by sol–gel method under 1250 °C. Scanning electron microscope (SEM) indicates that the phosphor consists of nano-sized whiskers which are detected for the first time in Eu2+ and Dy3+ co-doped long-lasting phosphorescence silicates. Furthermore, the investigation on the mechanism indicates that the internal structure and gas, liquid and solid phase effect play important roles in the formation of flower-like Sr2MgSi2O7: Eu2+, Dy3+ nanostructure. Finally, the optical properties of flower-like Sr2MgSi2O7 nanostructure have been characterized by photoluminescence (PL) spectra.

Keywords

Flower-like Sol–gel method Long afterglow materials Sr2MgSi2O7: Eu2+ Dy3+ 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.School of Material Science and Engineering, Key Laboratory for Advanced Ceramics and Machining Technology, Ministry of EducationTianjin UniversityTianjinChina

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