Crystal structure and characteristic luminescence properties investigation of novel red-emitting phosphor Na3MgZr(PO4)3:Eu3+ for white light-emitting diodes
Crystal structure and characteristic luminescence properties investigation of novel red-emitting phosphor Na3MgZr(PO4)3:Eu3+ for white light-emitting diodes
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DOI：
10.1007/s10854-017-8135-4
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发表时间：
2018-02
期刊：
影响因子：
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通讯作者：
G. Zhu;Zhouwei Li;Chuang Wang;Faguang Zhou;Yurong Shi;Yan Wen;Shuangyu Xin
中科院分区：
文献类型：
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作者：
G. Zhu;Zhouwei Li;Chuang Wang;Faguang Zhou;Yurong Shi;Yan Wen;Shuangyu Xin
采用固相反应合成了一系列新型红色发光荧光粉Na3MgZr(PO4)3:Eu3+。通过x射线衍射细化和系列x射线衍射图分析，研究了Na3MgZr(PO4)3基体的相纯度、晶体结构和Eu3+的占位行为。通过光致发光激发、发射光谱和衰减次数等指标，详细研究了材料的结构和温度相关发光特性。在393 nm激发下，Na3MgZr(PO4)3:Eu3+荧光粉在611 nm （5d0 - 7f2跃迁）处表现出较强的红发射，具有良好的热稳定性。研究了该材料的热稳定性和淬火机理。讨论了从5d1能级观测到的异常跃迁。结果表明，Na3MgZr(PO4)3:Eu3+可以作为白光二极管的红发荧光粉。
A series of novel red emission phosphors Na3MgZr(PO4)3:Eu3+was synthesized by solid state reaction. The phase purity, crystal structure of Na3MgZr(PO4)3host and the site occupancy behaviour of Eu3+were investigated through X-ray diffraction refinement and series X-ray diffraction patterns analysis. The structure and temperature related luminescence properties were studied in detail by photoluminescence excitation, emission spectra and decay times. Upon 393 nm excitation, Na3MgZr(PO4)3:Eu3+phosphor can exhibit strong red emission dominated at 611 nm (5D0–7F2transitions) with excellent thermal stability. The thermal stability property and the quenching mechanism were investigated. The observed abnormal transitions from5D1energy level were discussed. The results indicated that Na3MgZr(PO4)3:Eu3+could be a suitable red-emitting phosphor candidate for white light emitting diodes.