Blue luminescence in porous anodic alumina films: the role of the oxalic impurities

被引：88

作者：

Gao, T ^{[1
]}

Meng, GM ^{[1
]}

Zhang, LD ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2003年 / 15卷 / 12期

关键词：

D O I：

10.1088/0953-8984/15/12/324

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Porous anodic alumina (PAA) films with ordered nanopore arrays have been prepared by electrochemically anodizing aluminium in oxalic acid solutions, and the role of the oxalic impurities in the optical properties of PAA films has been discussed. Photoluminescence (PL) measurements show that the PAA films obtained have a blue PL band with a peak position at around 470 nm; the oxalic impurities, incorporated in the PAA films during the anodization processes and already existing in them, could be being transformed into PL centres and hence responsible for this PL emission.

引用

页码：2071 / 2079

页数：9

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