発光特性およびトラップの解析による青色蛍光体CaMgSi<sub>2</sub>O<sub>6</sub>:Euの発光性能評価と予測

DOI Web Site Web Site 参考文献28件
  • 寺澤 佑仁
    九州大学大学院総合理工学府
  • 藤尾 侑輝
    産業技術総合研究所
  • 徐 超男
    産業技術総合研究所 九州大学大学院総合理工学府 九州大学 WPI-I<sup>2</sup>CNER

書誌事項

タイトル別名
  • Evaluation and Prediction of Photoluminescence Performance on the Blue Phosphor CaMgSi<sub>2</sub>O<sub>6</sub>:Eu by Analysis of the Trap
  • ハッコウ トクセイ オヨビ トラップ ノ カイセキ ニ ヨル アオイロ ケイコウタイ CaMgSi ₂ O ₆:Eu ノ ハッコウ セイノウ ヒョウカ ト ヨソク

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抄録

In this study, we investigated an origin of low reproducibility of blue phosphor (CaMgSi2O6:Eu) by means of XRD, SEM, cathodoluminescence, photoluminescence, and thermoluminescence. There were no changes in the crystal structure, particle size, surface morphology, and cathodoluminscence property. On the other hand, it was seen that an increase in photoluminescence intensity induced a corresponding decrease in peak area of thermoluminescence spectrum, and the photoluminescence intensity was almost linearly proportional to the peak area of thermoluminescence spectrum. In addition, similar relationship was also found in another blue phosphor Sr3MgSi2O8:Eu. It is suggested that the low reproducibility of the photoluminescence intensity may be due to the change of the thermoluminescence spectra. Thus, by controlling the concentration of traps in the host crystal of the phosphor, it is possible to predict the potential performance of its photoluminescence.

収録刊行物

  • Electrochemistry

    Electrochemistry 81 (2), 77-81, 2013

    公益社団法人　電気化学会

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