Strongly enhanced photoluminescence and X-ray excited optical luminescence of the hydrothermally crystallized (Sr,Mn)5(PO4)3(F,Cl) nanorods by composition modulating
Strongly enhanced photoluminescence and X-ray excited optical luminescence of the hydrothermally crystallized (Sr,Mn)5(PO4)3(F,Cl) nanorods by composition modulating
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通过成分调节强烈增强水热结晶的(Sr,Mn)(5)(PO4)(3)(F,Cl)纳米棒的光致发光和X射线激发光致发光
DOI：
10.1016/j.jallcom.2020.157529
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发表时间：
2020
影响因子：
6.2
通讯作者：
Wang Yu
中科院分区：
文献类型：
--
作者：
Wang Zhihao;Zhang Mengxiao;He Jiao;Tang Yongan;He Tingchao;Sun Qiang;Fan Dianyuan;Wang Yu
近年来，具有光致发光（PL）和X射线激发光致发光的发光材料的发展吸引了越来越多的可视化应用的研究兴趣。本研究采用水热法制备了（Sr 1-xMnx）5（PO 4）3F 1-yCly（x= 0-0.05，y= 0-0.40）纳米棒，经组分调制后，具有良好的光致发光和X射线激发的光学发光性能。首次揭示了溶液pH和Cl−掺入对产物结构和形貌的影响。(Sr 1-xMnx）5（PO 4）3F在402 nm激发和X射线照射下均产生绿色发射，发射波长为548 nm（4 T1（4G）→ 6A 1（6S）），在x= 0.03时，荧光和X射线激发的光致发光最佳. F−被更大的Cl−取代导致产生大量的Frenkel缺陷（错位的F−和阴离子空位VF）。沿着c轴方向，（Sr0.97Mn0.03）5（PO 4）3F 1-yCly样品的PL和X射线激发光致发光强度分别增强了1.6和7.4倍，相应的最佳y值为0.20和0.30。荧光衰减分析发现，在较高的Mn 2+和Cl−浓度下，Mn 2+的荧光寿命持续缩短，并对其机理进行了讨论.（Sr，Mn）5（PO 4）3（F，Cl）磷灰石材料具有较强的光致发光和X射线激发的光致发光，在照明和照明领域有着广阔的应用前景。
The development of emitting materials that present both photoluminescence (PL) and X-ray excited optical luminescence has recently been attracting rising research interest for visualization applications. We introduced in this study the hydrothermally crystallized (Sr 1-x Mn x) 5 (PO 4) 3 F 1-y Cl y (x= 0–0.05, y= 0–0.40) nanorods with favorable PL and X-ray excited optical luminescence properties after composition modulating. The effects of solution pH and Cl− incorporation on structure and morphology of the products were firstly unveiled.(Sr 1-x Mn x) 5 (PO 4) 3 F gives green emission at∼ 548 nm (4 T 1 (4 G)→ 6 A 1 (6 S)) under either 402 nm excitation or X-ray irradiation, and the optimal PL and X-ray excited optical luminescence were observed at x= 0.03. The replacement of F− by larger Cl− led to the generation of an amount of Frenkel defects (the dislocated F− and anion vacancies V F.) along the c-axis, benefit from which the (Sr 0.97 Mn 0.03) 5 (PO 4) 3 F 1-y Cl y samples present enhanced PL and X-ray excited optical luminescence intensities by factors of 1.6 and 7.4, respectively, and the corresponding optimal y values are determined to be 0.20 and 0.30. Fluorescence decay analysis found steadily shortened fluorescent lifetime for Mn 2+ at higher Mn 2+ and Cl− concentrations, and the underlying mechanism was discussed. The (Sr, Mn) 5 (PO 4) 3 (F, Cl) apatite material, with enhanced PL and X-ray excited optical luminescence, may find novel applications for both lighting and scintillating.