Photoluminescence properties of anodic alumina membranes with ordered nanopore arrays
Photoluminescence properties of anodic alumina membranes with ordered nanopore arrays
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DOI：
10.1016/j.jlumin.2005.12.057
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发表时间：
2006-12
影响因子：
3.6
通讯作者：
Xiuyu Sun;F. Xu;Zongmu Li;Wenhua Zhang
中科院分区：
文献类型：
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作者：
Xiuyu Sun;F. Xu;Zongmu Li;Wenhua Zhang
研究了在草酸溶液中制备的有序纳米孔阵列阳极氧化铝膜在不同退火温度下的光致发光。光致发光强度先增大，在500°C时达到最大值，然后减小。X射线衍射证实了AAMs由非晶态向γ-Al_2O_3的结构转变。热重分析和电子顺磁共振测量结果表明，氧化铝膜的PL带可以归因于氧相关的缺陷中心（F+中心），而不是从草酸杂质转化的发光中心。
Photoluminescence (PL) of anodic alumina membranes (AAMs) with ordered nanopore arrays fabricated in oxalic acid has been investigated under different annealing temperatures. The PL intensity firstly increases, and at 500°C reaches a maximum value, then decreases. The structural transition from amorphous to γ-Al2O3in AAMs has been confirmed by X-ray diffraction. Thermogravimetric analysis results and electron paramagnetic resonance measurements revealed that the PL band of alumina membranes could be attributed to the oxygen-related defect centers (F+centers) rather than the luminescent centers transformed from oxalic impurities.