rare-earth activated nitride phosphors: synthesis, luminescence and applications

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ID: 256625
2010
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Abstract
Nitridosilicates are structurally built up on three-dimensional SiN4 tetrahedral networks, forming a very interesting class of materials with high thermomechanical properties, hardness, and wide band gap. Traditionally, nitridosilicates are often used as structural materials such as abrasive particles, cutting tools, turbine blade, etc. Recently, the luminescence of rare earth doped nitridosilicates has been extensively studied, and a novel family of luminescent materials has been developed. This paper reviews the synthesis, luminescence and applications of nitridosilicate phosphors, with emphasis on rare earth nitrides in the system of M-Si-Al-O-N (M = Li, Ca, Sr, Ba, La) and their applications in white LEDs. These phosphors exhibit interesting luminescent properties, such as red-shifted excitation and emission, small Stokes shift, small thermal quenching, and high conversion efficiency, enabling them to use as down-conversion luminescent materials in white LEDs with tunable color temperature and high color rendering index.
Reference Key
xie2010materialsrare-earth Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Rong-Jun Xie;Naoto Hirosaki;Yuanqiang Li;Takashi Takeda
Journal Nature Materials
Year 2010
DOI
10.3390/ma3063777
URL
http://www.mdpi.com/1996-1944/3/6/3777/
Keywords
nitride luminescence electronics civil engineering (general)microscopydescriptive and experimental mechanics nuclear engineeringengineering (general)

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