| 氧化条件对草酸/硫酸混合电解液中制备的多孔阳极氧化铝膜光致发光的影响 |
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| 引用本文： | 李守义,马保宏,张军英.氧化条件对草酸/硫酸混合电解液中制备的多孔阳极氧化铝膜光致发光的影响[J].河西学院学报,2010,26(2):16-20. |
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| 作者姓名： | 李守义 马保宏 张军英 |
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| 作者单位： | 河西学院物理科学与电子技术系,甘肃,张掖,734000 |
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| 摘 要： | 用电化学阳极氧化工艺,在草酸/硫酸的混合电解液中制备了3个系列的多孔阳极氧化铝(AAO)薄膜样品,分别考察了阳极氧化电压、氧化时间以及混合电解液中草酸/硫酸浓度比对样品光致发光(PL)特性的影响.结果表明,AAO薄膜在250~480nm波长范围内的光致发光与草酸杂质形成的发光中心密切相关,且随阳极电压的增加、氧化时间的延长及混合电解液中草酸浓度的增加,光致发光强度分别依次单调增强,但峰位不变.分析了产生上述现象的原因.
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| 关 键 词： | 多孔阳极氧化铝 光致发光 阳极氧化 发光中心 |
Effects of Oxidation Conditions on the Photoluminescence of the Porous Anodic Aluminum Oxide Membranes Prepared in a Mixture Electrolyte of Oxalic and Sulfuric Acid |
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| Li Shou-yi,Ma Bao-hong,Zhang Jun-ying.Effects of Oxidation Conditions on the Photoluminescence of the Porous Anodic Aluminum Oxide Membranes Prepared in a Mixture Electrolyte of Oxalic and Sulfuric Acid[J].Journal of Hexi University,2010,26(2):16-20. |
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| Authors: | Li Shou-yi Ma Bao-hong Zhang Jun-ying |
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| Institution: | Li Shou-yi Ma Bao-hong Zhang Jun-ying(Department of Physics Science and Electronic Technology,Hexi University,Zhangye 734000) |
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| Abstract: | Porous anodic aluminum oxide（AAO） membranes including three groups with different anodizing voltage,anodizing time and concentration ratios of oxalic acid and sulfuric acid are fabricated by electrochemical technique in oxalic/sulfuric mixture electrolytes respectively.The photoluminescence（PL） properties of the three groups＇ samples influenced by anodizing voltage,anodizing time and concentration ratios of oxalic acid and sulfuric acid are investigated,respectively.The results show that there is a PL band of AAO membranes formed in the mixture electrolytes in the wavelength range of 250-480 nm,which mainly arise from the oxalic impurities incorporated into AAO membranes.The PL intensities of AAO membranes are enhanced with the increase of anodizing voltage,anodizing time and concentration ratios of oxalic acid and sulfuric acid,respectively,but the PL peak positions are invariable.The reason for the experimental phenomenon is analyzed. |
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| Keywords: | Porous anodic aluminum Photoluminescence Anodizing Luminescence centre |
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