A novel blue magnesium strontium aluminate-based phosphor for PDP application

• Published in: Solid state communications 2005-06, Vol.134 (12), p.809-813
• Main Authors: Xing, De-Song, Cheah, Kok-Wai, Cheng, Pui-Yan, Xu, Jian, Shi, Jian-Xin, Liang, Hong-Bin, Gong, Meng-Lian
• Format: Article
• Language: English
• Subjects: Applied sciences; Condensed matter: electronic structure, electrical, magnetic, and optical properties; D. Optical properties; Display; E. Luminescence; Electron and ion emission by liquids and solids; impact phenomena; Electronics; Exact sciences and technology; Field emission, ionization, evaporation, and desorption; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Physics
• ISSN: 0038-1098; 1879-2766
• DOI: 10.1016/j.ssc.2005.03.029

A novel blue light-emitting phosphor, Eu 2+-doped magnesium strontium aluminate (MgSrAl 10O 17:Eu 2+), for plasma display panel (PDP) application was developed. X-ray diffraction (XRD) patterns disclosed that the phosphor annealed at 1500 °C for 5 h was a pure MgSrAl 10O 17 phase. Field emission scanning electron microscopy (FE-SEM) images showed the particle size of the phosphor was less than 3 μm. The phosphor shows strong and broad blue emission under vacuum ultraviolet (VUV) light excitation. After baking at 400–600 °C and irradiation with VUV light for 300 h, the phosphor still keep excellent VUV luminescence properties exhibiting good stability against high temperature baking and VUV irradiation. The decay time was short as 1.09 μs and the quantum yield was high to 0.77±0.02. All the characteristics indicated that MgSrAl 10O 17:Eu 2+ would be a promising blue phosphor for PDP application.