In-depth study of self-ordered porous alumina in the 140-400 nm pore diameter range

Abstract The growth of self-ordered anodic aluminum oxide (AAO) templates with pore diameters in the 140–400 nm range is achieved by anodization in phosphoric acid at low temperatures (−4 °C). The procedure used in this study is able to completely avoid the “burning” of the oxide, highly frequent in anodizations in phosphoric acid solutions at high voltages. The current density measured during the anodizations is rather low, 0.6–0.7 mA/cm 2 ; therefore, low growth rates have been also measured ( v Δ d  = 0.636 ± 0.101 nm/h) has been observed as a consequence of the chemical dissolution of the pore walls during the anodization. Thus, the results reported here constitute an exhaustive study on the preparation of large-diameter-pore self-ordered AAO templates that enables both to access to pore diameters up to now inaccessible and to efficiently overcome the difficulties of their fabrication process ascribed to its aggressive reaction conditions.

[1]  Kenji Fukuda,et al.  Ordered Metal Nanohole Arrays Made by a Two-Step Replication of Honeycomb Structures of Anodic Alumina , 1995, Science.

[2]  C. R. Martin,et al.  Membrane-Based Synthesis of Nanomaterials , 1996 .

[3]  Ronald Gronsky,et al.  Direct Electrodeposition of Highly Dense 50 nm Bi2Te3-ySey Nanowire Arrays , 2003 .

[4]  C. R. Martin,et al.  Enantioseparation using apoenzymes immobilized in a porous polymeric membrane , 1997, Nature.

[5]  Ralf B. Wehrspohn,et al.  Self-ordering Regimes of Porous Alumina: The 10% Porosity Rule , 2002 .

[6]  Wei Chen,et al.  Porous anodic alumina with continuously manipulated pore/cell size. , 2008, ACS nano.

[7]  Ronald Gronsky,et al.  High‐Density 40 nm Diameter Sb‐Rich Bi2–xSbxTe3 Nanowire Arrays , 2003 .

[8]  M. Martín-González,et al.  Ordered InAs QDs using prepatterned substrates by monolithically integrated porous alumina , 2006 .

[9]  U. Gösele,et al.  Polycrystalline and monocrystalline pore arrays with large interpore distance in anodic alumina , 1999 .

[10]  D Richter,et al.  Direct observation of confined single chain dynamics by neutron scattering. , 2010, Physical review letters.

[11]  A. Greiner,et al.  Polymer Nanotubes by Wetting of Ordered Porous Templates , 2002, Science.

[12]  Sachiko Ono,et al.  Self‐Ordering of Cell Arrangement of Anodic Porous Alumina Formed in Sulfuric Acid Solution , 1997 .

[13]  M. López‐Haro,et al.  Direct sub-nanometer scale electron microscopy analysis of anion incorporation to self-ordered anodic alumina layers , 2010 .

[14]  M. Fernández-Gutiérrez,et al.  Cellular interactions of biodegradable nanorod arrays prepared by nondestructive extraction from nanoporous alumina , 2010 .

[15]  Ronald Gronsky,et al.  Electrodeposition of Bi1-xSbx Films and 200-nm Wire Arrays from a Nonaqueous Solvent , 2003 .

[16]  Sachiko Ono,et al.  Controlling Factor of Self-Ordering of Anodic Porous Alumina , 2004 .

[17]  Charles R. Martin,et al.  Nanomaterials: A Membrane-Based Synthetic Approach , 1994, Science.

[18]  C. Mijangos,et al.  Tailored polymer-based nanofibers and nanotubes by means of different infiltration methods into alumina nanopores. , 2009, Langmuir : the ACS journal of surfaces and colloids.

[19]  D E Smith,et al.  Direct observation of tube-like motion of a single polymer chain. , 1994, Science.

[20]  Kornelius Nielsch,et al.  Fast fabrication of long-range ordered porous alumina membranes by hard anodization , 2006, Nature materials.

[21]  C. Ross,et al.  Wafer-scale Ni imprint stamps for porous alumina membranes based on interference lithography. , 2006, Small.

[22]  Kornelius Nielsch,et al.  Hexagonal pore arrays with a 50-420 nm interpore distance formed by self-organization in anodic alumina , 1998 .