Table 1

Parameters of the self-organized nanochannel arrays

Method

One-step

Three-step

Multi-electrolyte


Step

one

three

approximately one

Al thickness

approximately 2 μm

approximately 6 μm

approximately 2 μm

Electrolyte

H3PO4

H3PO4

H2C2O4

Bias voltage

120 V

120 V

50 V

Processing time

30 min

90 min

approximately 30 min

Applied power

approximately 72 W

approximately 216 W

approximately 39 W

Circularity ± Δ

0.85 ± 0.1

0.87 ± 0.05

0.87 ± 0.05

Diameter

126.5 nm

122.4 nm

155.9 nm

Period ± Δ

203 ± 35 nm

206 ± 15 nm

202 ± 20 nm


The nanochannel arrays were obtained with the one-step, three-step, and multi-electrolyte-step AAO methods.

Chen and Chen Nanoscale Research Letters 2012 7:122   doi:10.1186/1556-276X-7-122

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