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    [1]陳浩,劉琳,徐飛翔,等.Sm3+摻雜LnNbO4(Ln=La,Y)紅色熒光粉的性能分析[J].廈門理工學院學報,2020,(5):81-88.[doi:1019697/jcnki16734432202005013]
     CHEN Hao,LIU Lin,XU Feixiang,et al.A Study on the Properties of Sm3+ Doped LnNbO4(Ln=La,Y) Red Phosphors[J].Journal of JOURNAL OF XIAMEN,2020,(5):81-88.[doi:1019697/jcnki16734432202005013]
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    《廈門理工學院學報》[ISSN:1673-4432/CN:35-1289/Z]

    卷:
    期數:
    2020年第5期
    頁碼:
    81-88
    欄目:
    材料科學與工程
    出版日期:
    2020-10-30

    文章信息/Info

    Title:
    A Study on the Properties of Sm3+ Doped LnNbO4(Ln=La,Y) Red Phosphors
    文章編號:
    16734432(2020)05008108
    作者:
    陳浩劉琳徐飛翔張曉云崔悅熊飛兵
    廈門理工學院光電與通信工程學院,福建 廈門 361024
    Author(s):
    CHEN HaoLIU LinXU FeixiangZHANG XiaoyunCUI YueXIONG Feibing
    School of Optoelectronics & Communications Engineering,Xiamen University of Technology,Xiamen 361024,China
    關鍵詞:
    Sm3+摻雜LnNbO4(Ln=LaY)紅色熒光粉熒光性能白光LED高溫固相法
    Keywords:
    Sm3+ dope LnNbO4(Ln=LaY) red phosphorsluminescent propertieswhite LEDshigh temperature solidstate method
    分類號:
    TG14645
    DOI:
    1019697/jcnki16734432202005013
    文獻標志碼:
    A
    摘要:
    通過高溫固相法合成系列Sm3+摻雜LnNbO4(Ln=La,Y)紅色熒光粉,并對樣品的物相結構、熒光特性、衰減壽命和熒光熱猝滅等性能進行實驗分析。分析結果表明:合成的樣品不含雜質相,可以被近紫外光LED和藍光LED芯片有效激發,發出色坐標為(0615 5,0380 2)的紅光對于LnNbO4(Ln=La,Y)基質來說,Sm3+摻雜LaNbO4基質的熒光強度比較強,最佳的Sm3+摻雜濃度為2%;隨著Sm3+摻雜濃度的提高衰減壽命曲線由單指數線形變雙指數線形,且衰減壽命不斷變短;Sm3+之間的電偶極電偶極作用是導致熒光濃度猝滅發生的原因;樣品在293~450 K這一溫度范圍內具有良好的熱穩定性。說明Sm3+摻雜的LaNbO4紅色熒光粉具備成為白光LED用紅色熒光粉的潛力。
    Abstract:
    A series of Sm3+ doped LnNbO4 (Ln=La,Y) red phosphors were synthesized by a high temperature solidstate method,and the phase structure,fluorescence properties,decay life,and fluorescence heat quenching properties of the samples were analyzed.Analysis results show that the synthesized sample contains no impurity phase and is effectively excited by near ultraviolet and blue LED chips,emitting red light with color coordinates (0.615 5,0.380 2) the Sm3+ doped LaNbO4 host has a relatively strong fluorescence intensity with the optimal doping concentration at 2%;the decay life curve changes from monoexponential to biexponential linear with the increase of Sm3+ doping concentration and the decay life becomes shorter and shorter.Also,the energy transfer distance and other calculation results indicates that the electrical dipoleelectric dipole interaction between Sm3+ is the causes of fluorescence concentration quenching,and fluorescence heat quenching studies show that the sample has good thermal stability in the temperature range of 293450 K.Therefore,the LaNbO4 red phosphor doped with Sm3+ has the making to be a red phosphor used for white LEDs.

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    備注/Memo

    備注/Memo:
    收稿日期:20200715修回日期:20201011 基金項目:廈門理工學院科研攀登計劃(XPDKT18006) 通信作者:熊飛兵,男,教授,博士,研究方向為稀土發光材料,Email:fbxiong@xmuteducn。
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