Self-Ordering of Cell Configurations and Photoluminescence Properties of Anodic Alumina Membranes with Large Pore Diameters

2019 ◽  
Vol 14 (12) ◽  
pp. 1664-1666
Author(s):  
Haibin Zheng ◽  
Hongxia Bu
Keyword(s):  
Oxygen Vacancies ◽  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Photoluminescence Properties ◽  
Ultraviolet Emission ◽  
Alumina Membranes ◽  
Large Pore

Porous anodic alumina membranes (AAMs) with the 200 nm pores were successfully prepared electrochemically from Al sheets embedded H3PO4 solution. We found that the fitted voltage for the anodization is 160 V, and the concentration of the electrolyte is 0.1 M. Photoluminescence (PL) measurements of AAMs showed an ultraviolet emission at 320 nm, which originated from ionized oxygen vacancies (F+ centers).

scholarly journals Etching the Oxide Barrier of Micrometer-Scale Self-Organized Porous Anodic Alumina Membranes

2015 ◽  
Vol 162 (4) ◽  
pp. E47-E50 ◽  
Author(s):  
Jonathan Bellemare ◽  
Louis-Philippe Carignan ◽  
Frédéric Sirois ◽  
David Ménard
Keyword(s):  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Alumina Membranes ◽  
Self Organized ◽  
Oxide Barrier ◽  
Micrometer Scale

One-Dimensional Nanostructures in Porous Anodic Alumina Membranes

2010 ◽  
Vol 2 (3) ◽  
pp. 273-294 ◽  
Author(s):  
Xijin Xu ◽  
Xiaosheng Fang ◽  
Haibo Zeng ◽  
Tianyou Zhai ◽  
Yoshio Bando ◽  
...  
Keyword(s):  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
One Dimensional ◽  
Alumina Membranes ◽  
One Dimensional Nanostructures

THE DEPENDENCE OF ALUMINA NANOWIRE FORMATION FROM POROUS ANODIC ALUMINA MEMBRANES ON THE ETCHING SOLUTION

2012 ◽  
Vol 26 (03) ◽  
pp. 1150017 ◽  
Author(s):  
JIN KYU HAN ◽  
JIN HO KWAK ◽  
YONG CHAN CHOI ◽  
SANG DON BU
Keyword(s):  
Formation Mechanism ◽  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Morphological Properties ◽  
Alumina Membrane ◽  
Etching Solution ◽  
Membrane Filters ◽  
Alumina Membranes ◽  
Technological Developments ◽  
Selection Of

We describe variations in the structure and formation mechanism of alumina nanowires (ANWs) formed from porous anodic alumina (PAA) membranes, depending on the composition of the etching solution. Two types of ANWs were synthesized by etching PAA membranes in etching solutions containing H 3 PO 4 or NaOH . Not only did the ANW formation mechanism vary, but also the morphological properties and the surface chemical composition of the ANWs varied with the etching solution used. These results suggest that the ANW surfaces may be optimized by the appropriate selection of etching solution. The optimization of ANWs may potentially advance, for example, water purification technological developments because ANWs have, in recent studies, provided more effective filtration performances than nanoporous alumina membrane filters.

Fabrication, characterization, and photoluminescence properties of highly ordered TiO2 nanowire arrays

2001 ◽  
Vol 16 (4) ◽  
pp. 1138-1144 ◽  
Author(s):  
Y. Lei ◽  
L. D. Zhang
Keyword(s):  
Anatase Phase ◽  
Sol Gel ◽  
Broad Band ◽  
Anodic Alumina ◽  
Nanowire Arrays ◽  
Photoluminescence Properties ◽  
Alumina Membrane ◽  
Tio2 Nanowire ◽  
Alumina Membranes ◽  
Center Area

Highly ordered TiO2 nanowire arrays were prepared in anodic alumina membranes by a sol-gel method. The nanowires are single-crystalline anatase phase with uniform diameters around 50 nm. At room temperature, photoluminescence (PL) measurements of these TiO2 nanowire arrays showed a visible broad band with three peaks, which were located at about 425, 460, and 530 nm that are attributed to self-trapped excitons, F, and F+ centers, respectively. A model is also presented to explain the PL intensity drop-down of the TiO2 nanowire arrays embedded in the alumina membrane: the blue PL band of the anodic alumina membranes arises from the F+ centers on the pore walls, and the TiO2 nanowires first form in the center area of the pores and then extend to the pore walls.

Controlled Assembly of Highly Raman-Enhancing Silver Nanocap Arrays Templated by Porous Anodic Alumina Membranes

Small ◽  
2009 ◽  
Vol 5 (20) ◽  
pp. 2333-2337 ◽  
Author(s):  
Teng Qiu ◽  
Wenjun Zhang ◽  
Xianzhong Lang ◽  
Yongjin Zhou ◽  
Tiejun Cui ◽  
...  
Keyword(s):  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Controlled Assembly ◽  
Alumina Membranes

Electrochemical Design of Two-Dimensional Au Nanocone Arrays Using Porous Anodic Alumina Membranes with Conical Holes

2010 ◽  
Vol 10 (7) ◽  
pp. 4384-4387 ◽  
Author(s):  
Yusuke Yamauchi ◽  
Liang Wang ◽  
Hamed Ataee-Esfahani ◽  
Naoki Fukata ◽  
Tomota Nagaura ◽  
...  
Keyword(s):  
Anodic Alumina ◽  
Porous Anodic Alumina ◽  
Two Dimensional ◽  
Alumina Membranes
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