Effect of H3BO3 flux on the morphology and optical properties of Sr2MgAl22O36:Mr4+ red phosphors for agricultural light conversion films
Effect of H3BO3 flux on the morphology and optical properties of Sr2MgAl22O36:Mr4+ red phosphors for agricultural light conversion films
复制标题
H3BO3助熔剂对农用光转换膜用Sr2MgAl22O36:Mr(4)红色荧光粉形貌和光学性能的影响
DOI：
10.1016/j.ceramint.2016.05.076
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发表时间：
2016-08-15
影响因子：
5.2
通讯作者：
Lei, Bingfu
中科院分区：
文献类型：
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作者：
Zhang, Haiming;Zhang, Haoran;Lei, Bingfu
在高温固相反应法制备Sr2MgAl22O36：Mn4+荧光粉的过程中加入H3BO3。采用X射线粉末衍射（XRD）、扫描电子显微镜（SEM）和光致发光光谱（PL）研究了H3BO3助熔剂对Sr2MgAl22O36：Mn4+荧光粉的晶体结构、颗粒形貌和光致发光性能的影响。结果表明，添加H3BO3助熔剂可以改善Sr2MgAl22O36的发光强度和形貌，降低合成温度。H3BO3助熔剂的引入显著降低了纯相Sr2MgAl22O36的形成温度。Sr2MgAl22O36：1.2摩尔% Mn4+磷光体通过添加2.0重量% H3BO3的激发态寿命类似于1.02 ms。我们证明了这些磷光体通过农业光转换膜测试来增强太阳光收集的潜力。我们建议，薄膜含有Sr2MgAl22O36：1.2摩尔%的Mn4+磷光体可以应用于增加农业植物的产量。(C)2016 Elsevier Ltd和Techna Group S.r.l. All rights reserved.
H3BO3 was added during the preparation of Sr2MgAl22O36:Mn4+ phosphors by a high-temperature solid-state reaction method. The influence of H3BO3 flux on the crystal structure, particle morphology and photoluminescence properties of the Sr2MgAl22O36:Mn4+ phosphors was investigated by employing X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence spectroscopy, respectively. The results indicate that adding H3BO3 flux can improve the luminescence intensity and morphology, and reduce the synthesis temperature of the Sr2MgAl22O36 phosphor. The formation temperature of pure-phase Sr2MgAl22O36 was significantly decreased when H3BO3 flux as introduced. The excited state lifetime of the Sr2MgAl22O36:1.2 mol% Mn4+ phosphor by the addition of 2.0 wt% H3BO3 was similar to 1.02 ms. We demonstrated the potential of these phosphors to enhance sunlight harvesting by agricultural light conversion film testing. We propose that films containing the Sr2MgAl22O36:1.2 mol% Mn4+ phosphor can be applied to increase the production of agricultural plants. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.