Template synthesis and luminescence of ordered Lu3Al5O12:Ce3+ nanowire arrays
Template synthesis and luminescence of ordered Lu3Al5O12:Ce3+ nanowire arrays
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DOI：
10.1016/j.matlet.2015.12.072
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发表时间：
2016-03
影响因子：
3
通讯作者：
Zhiyuan Zhang;M. Gu;Yahua Hu;Xiaolin Liu;Shi-ming Huang;Bo Liu;Chen Ni
中科院分区：
文献类型：
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作者：
Zhiyuan Zhang;M. Gu;Yahua Hu;Xiaolin Liu;Shi-ming Huang;Bo Liu;Chen Ni
采用溶胶-凝胶法在阳极氧化铝（AAO）模板中制备了均匀的Lu 3Al 5 O 12：Ce 3+纳米线阵列。所制备的纳米线具有有序、均匀和致密的结构，其直径与AAO模板的孔径一致。通过X射线衍射和选区电子衍射分析，发现纳米线为多晶石榴石结构。AAO模板对Lu 3Al 5 O 12：Ce 3+纳米晶的聚结具有限制作用。Lu 3Al 5 O 12：Ce 3 +/AAO复合材料的光致发光和辐射发光光谱均由双峰组成，对应于Ce 3+从5d能级的最低晶场分裂分量到4f自旋轨道分裂2F 5/2和2F 7/2态的电子跃迁。
Uniform Lu3Al5O12:Ce3+nanowire arrays were successfully synthesized in Anodic Aluminum Oxide (AAO) templates by a sol–gel method. The as-prepared nanowires with ordered, homogenous and dense structure had a uniform diameter, corresponding to the pore diameter of the AAO template. The polycrystalline garnet structure of the as-prepared nanowires was found by X-ray diffraction and selected area electronic diffraction. AAO template has a confinement effect on the coalescence of Lu3Al5O12:Ce3+nanocrystallites. Both photoluminescence and radioluminescence spectra of Lu3Al5O12:Ce3+/AAO composite consist of double peaks, which correspond to the electron transition of Ce3+from the lowest crystal-field splitting component of 5d level to the 4f spin–orbit splitting2F5/2and2F7/2states.