Highly thermally stable single-phased white-light-emitting luminescence achieved by Dy3+ or Tb3+ Co-doped LiLa(MoO4)2:Sm3+ red-orange phosphors

Yi Hua Hung, I. Chun Ling, Tsung Hsien Hsu, Cheng Liang Huang

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

A tunable white light phosphor, LiLa(MoO4)2: Sm3+, Sm3+/Dy3+, Sm3+/Tb3+, was synthesized using a high-temperature solid-state reaction method. Its luminescence properties were investigated through various analyses, including excitation and emission spectra, as well as Commission Internationale de l′Eclairage (CIE) coordinates. The results showed that Sm3+-doped LLMO exhibited a characteristic red emission at 602 nm when excited at 276 nm and retained 95.96% of its initial intensity, indicating strong thermal stability. Furthermore, by varying the co-doping concentration, the white light emission of LLMO: Sm3+/Dy3+, Sm3+/Tb3+ can be tuned, allowing for modulation of the emission color along the X and Y axes with excellent thermal stability at high temperatures, namely a high-intensity retention of 78.2% and 94.8% at 425 K, respectively. Overall, the findings suggest that the proposed phosphors hold great potential for applications in both white and colored LED lighting.

原文English
文章編號107334
期刊Materials Today Communications
37
DOIs
出版狀態Published - 2023 12月

All Science Journal Classification (ASJC) codes

  • 一般材料科學
  • 材料力學
  • 材料化學

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