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不同电解液中制备的多孔阳极氧化铝薄膜光致发光特性比较研究 被引量：1

Photoluminescence properties of porous anodic alumina films with different acid aqueous solutions
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摘要 采用电化学方法分别在硫酸、草酸、磷酸电解液中制备了多孔阳极氧化铝（AAO）薄膜．对其光致发光特性进行研究发现，硫酸和草酸电解液中制备的AA0薄膜在350-600nm范围内出现了较强的光致发光带，前者的发光峰位为420nm，后者除了420nm的发光峰外，还在470nm处有一个明显的峰肩，且后者的发光强度随氧化电压的增加而逐渐增强．磷酸电解液中制备的AAO薄膜在350-600nm范围内没有出现明显的光致发光带．对其发光机理分析认为，硫酸电解液中制备的AAO薄膜的峰位为405nm的发光源于F＋（氧空位俘获1个电子）中心，峰位为455nm的发光可能是由F（氧空位俘获2个电子）中心引起的，也可能是由其它因素引起的．草酸电解液中制备的AAO薄膜的峰住为420nm的发光与F＋中心有一定的相关性，峰位为470nm的发光主要源于与草酸根离子有关的发光基团． Porous anodic alumina （AAO） films have been prepared by electrochemically anodizing aluminium in sulfuric acid. oxalic acid and phosphoric acid solutions, respectively. Photoluminescence （PL） measurements show that the AAO films prepared in sulfuric and oxalic solutions have the strong PL band from 350- 600 nm with a peak position at around 420 nm, and the latter have the other PL peak at around 470 nm. But the AAO films prepared in phosphoric solutions have not the PL band from 350-600 nm. The mechanism analyses reveal that the luminescence of 405 nm of AAO films prepared in sulfuric acid solutions originate from F＋ （oxygen vacancy with only one electron） centers, while the 455 nm maybe originates from F（oxygen vacancy with two electron） centers, or originates from other reasons. The PL peak of 420 nm of AAO films prepared in oxalic acid solutions is related to F＋, while the PL peak of 470 nm originates from luminescence center which is related to oxalate ions.
作者 吕国才 李燕 王建 赵新宏 王成伟
机构地区 西北师范大学物理与电子工程学院
出处 《西北师范大学学报（自然科学版）》 CAS 2006年第2期54-58,共5页 Journal of Northwest Normal University(Natural Science)
基金 甘肃省自然科学基金资助项目(ZS021-A25-029-C) 西北师范大学科技创新工程资助项目(KJCXGC-214)
关键词 多孔阳极氧化铝 光致发光 发光机理 电化学方法 porous anodie alumina photoluminescence luminescent mechanism electrochemical method
分类号 O484.41 [理学—固体物理]
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参考文献19

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共引文献88

同被引文献11

  • 1吴玉程,马杰,叶敏,解挺,杨友文,李广海,张立德.多孔阳极氧化铝模板的制备及其光学特性研究[J].功能材料与器件学报,2005,11(4):440-444. 被引量：5
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西北师范大学学报（自然科学版）
2006年 第2期

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