期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
磷酸扩孔对阳极氧化铝薄膜光学性质的影响
- 河北师范大学 物理学院, 河北 石家庄 050024
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DOI：10.13763/j.cnki.jhebnu.nse.202102010
Optical Properties of Anodic Aluminum Oxide Subject to Pore-enlargement in Phosphoric Acid
摘要/Abstract
采用自制电解槽、氧极氧化装置，并用磷酸腐蚀扩孔制备了阳极氧化铝薄膜. 通过扫描电子显微镜、紫外-可见漫反射光谱仪、荧光分光光度计等对样品进行了表征. 结果表明，随扩孔时间从10min延长到30min，阳极氧化铝薄膜的孔径由39nm增大到69nm，光致发光强度降低，带隙能由3.92 eV降低到3.85 eV. 研究发现，腐蚀扩孔过程会导致薄膜中氧空位的数量发生变化，揭示了通过腐蚀扩孔调控氧化铝薄膜中氧空位数量的可能性.实验结果为获得预期物性的阳极氧化铝薄膜提供了一种可行的途径.
In this work, we firstly fabricate anodic aluminum oxide membrane in self-made electrolytic cell,and then widen the pores by corroding the membrane in phosphoric acid. The samples were characterized by scanning electron microscopy, ultraviolet-visible reflectance spectroscopy, and fluorescence spectrophotometer. The results show that as the time of pore-widening increase from 10 to 30min,the pore diameter of anodic aluminum oxide membrane increases from 39 to 69nm,the photoluminescence intensity slightly decreases,the optical band gap decreases from 3.92 to 3.85 eV. It was found that the number of oxygen vacancies in the thin film changed during pore-widening,which revealed the possibility of controlling the number of oxygen vacancies in the thin film by pore-widening. The experimental results provide a feasible way to obtain the anodized alumina film with expected physical properties.
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参考文献 16
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