The effect of oxalic and sulfuric ions on the photoluminescence of anodic aluminum oxide formed in a mixture of sulfuric and oxalic acid
The effect of oxalic and sulfuric ions on the photoluminescence of anodic aluminum oxide formed in a mixture of sulfuric and oxalic acid
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DOI：
10.1007/s00339-008-4869-4
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发表时间：
2009-03
期刊：
影响因子：
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通讯作者：
Jian Wang;Chengwei Wang;Shou-Yi Li;F. Zhou
中科院分区：
文献类型：
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作者：
Jian Wang;Chengwei Wang;Shou-Yi Li;F. Zhou
分别在硫酸、草酸及其混合溶液中制备了具有高度有序孔阵列的阳极氧化铝（AAO）薄膜。光致发光（PL）测量表明，在混合电解质中形成的AAO薄膜具有300 ~ 450 nm波长范围内的PL波段，这主要是由于在AAO薄膜中掺入草酸杂质所致。然而，硫离子对PL波段有很强的影响。随着混合电解质中硫离子浓度的增加，PL波段在410 ~ 345 nm范围内发生蓝移。结果的原因正在讨论中。
Anodic aluminum oxide (AAO) films with highly ordered pore arrays were prepared in sulfuric, oxalic acids and their mixture solutions, respectively. The photoluminescence (PL) measurements show that AAO films formed in the mixture electrolytes have PL bands in the wavelength range of 300–450 nm, which mainly arise from the oxalic impurities incorporated into AAO films. However, the sulfuric ions have a strong effect on the PL bands. With the increase of the concentration of sulfuric ions in the mixture electrolyte, the blueshift of the PL bands occurs from 410 to 345 nm. The reasons of the results are being discussed.