Fabrication, formation mechanism and optical properties of novel single-crystal Er3+ doped NaYbF4 micro-tubes
Fabrication, formation mechanism and optical properties of novel single-crystal Er3+ doped NaYbF4 micro-tubes
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新型单晶Er3掺杂NaYbF4微管的制备、形成机制及光学性能
DOI：
10.1039/b920496b
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发表时间：
2010-03
影响因子：
--
通讯作者：
中科院分区：
文献类型：
--
作者：
采用简单的水热法合成了一种新型的Er3+掺杂NaYbF4六角形单晶微管结构。通过透射电镜（TEM）和扫描电镜（SEM）对样品的典型形貌和结构进行了研究，结果表明制备的样品呈端部开口、尺寸均匀的管状结构。通过对不同水热处理次数制备的样品进行TEM分析，得出NaYbF4六边形微管的形成机制为纳米级团簇先成核，然后自组装聚集成薄片，最后滚压成NaYbF4六边形微管。在980 nm激发下，用肉眼观察到强烈的红色上转换发光，这表明新型的NaYbF4微管结构是一种潜在的光致发光主体材料。由于独特的发光，这些NaYbF4六角形棱镜微管可能有希望进行进一步的基础研究，并在彩色显示器和固态激光器中找到应用。
A novel Er3+ doped NaYbF4 hexagonal-prismatic micro-tubular structure with single crystalline nature was synthesized by a facile hydrothermal method. The typical morphologies and structure were investigated by transmission electron microscopy (TEM) and scanning electron microscopy (SEM) which revealed that the as-prepared samples presented a tubular structure with open ends and uniform size. Based on TEM analysis of the samples prepared at different hydrothermal treatment times, the formation mechanism of the NaYbF4 hexagonal-prismatic micro-tube was concluded to be that the nano-sized clusters nucleated first and then self-assembly aggregated into thin sheets and finally rolled into NaYbF4 hexagonal-prismatic micro-tubes. Intense red upconversion luminescence was observed by the naked eye under 980 nm excitation, which indicated that the novel NaYbF4 micro-tubular structure is a potential host material for photoluminescence. Due to the unique luminescence, these NaYbF4 hexagonal-prismatic micro-tubes may be promising for further fundamental research and find applications in color displays and solid-state lasers.
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影响因子：
29.4
作者：
Younan Xia;B. Gates;Yadong Yin;Yu Lu
通讯作者：
Younan Xia;B. Gates;Yadong Yin;Yu Lu
影响因子：
17.1
作者：
Fan Zhang;Dongyuan Zhao
通讯作者：
Fan Zhang;Dongyuan Zhao
影响因子：
4
作者：
YAZAWA, M;KOGUCHI, M;HIRUMA, K
通讯作者：
HIRUMA, K
影响因子：
3.5
作者：
S. Man;E. Pun;P. Chung
通讯作者：
S. Man;E. Pun;P. Chung
影响因子：
64.8
作者：
IIJIMA, S
通讯作者：
IIJIMA, S