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Synthesis of the high performance YAG:Ce phosphor by a sol-gel method

  • University of Science and Technology of China

科研成果: 期刊稿件 › 文章 › 同行评审

摘要

A novel sol-gel (SG) method has been proposed to synthesize the YAG:Ce phosphor. Raw powders of Y2O3, Al(NO3) 3 · 9H2O and Ce(NO3)3 · 6H2O were mixed and dissolved in water. No organic additives have been added. The gel with an inorganic Al/Y oxide framework was formed by heating the solution with continuous stirring, and then the precursors were fired at 1550°C under the reductive atmosphere. X-ray diffractometer (XRD) and photoluminescence (PL) measurements indicated that the pure and high performance YAG phosphors were obtained. Scanning electron microscopy (SEM) observation showed that the phosphor particles are well dispersed and nearly spherical with a homogeneous particle size. Electron paramagnetic resonance (EPR) measurement revealed that the proposed method could prompt the Ce 3+ ions to occupy the normal Y sites, leading to increased photoluminescence.

源语言英语
页(从-至)R119-R122
期刊ECS Journal of Solid State Science and Technology
卷1
期4
DOI
出版状态已出版 - 2012
已对外发布是

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