The synthesis and optical property of solid-state-prepared YAG:Ce phosphor by a spray-drying method

Hsuan Min Lee, Chao Chi Cheng, Chi Yuen Huang

研究成果: Article同行評審

41 引文 斯高帕斯(Scopus)

摘要

Ce3+-activated yttrium aluminum garnet (Y3Al5O12:Ce, YAG:Ce) powder as luminescent phosphor was synthesized by the solid-state reaction method. The phase identification, microstructure and photoluminescent properties of the products were investigated by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), absorption spectrum and photoluminescence (PL) analysis. Spherical phosphor particle is considered better than irregular-shaped particle to improve PL property and application, so this phosphor was granulated into a sphere-like shape by a spray-drying device. After calcinating at 1500 °C for 0, 4, and 8 h, the product was identified as YAG and CeO2 phases. The CeO2 phase content is decreased by increasing the calcination time or decreasing the Ce3+ doping content. The product showed higher emission intensity resulted from more Ce3+ content and larger grain size. The product with CeO2 was found to have lower emission intensity. This paper presents the crystal structures of Rietveld refinement results of powder XRD data.

原文English
頁(從 - 到)1081-1085
頁數5
期刊Materials Research Bulletin
44
發行號5
DOIs
出版狀態Published - 2009 五月 6

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 凝聚態物理學
  • 材料力學
  • 機械工業

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