UniKera NanoTemplates

Synkera offers a broad range of anodic alumina-based nanotemplates of three distinctly different architectures:

AAO Nanotemplates attached to Al foil (see specifications below).
Free-standing AAO nanotemplates (specifications same as UniKera™ standard membranes).
Nanotemplates on non-Al substrates, such as Si or glass (email us for availability).

Most of our AAO nanotemplates and nanoporous membranes could be ordered with pore diameter in 10-100 nm range. They are characterized high degree or pore ordering, narrow pore size distribution (standard deviation is typically better then 10%, and in some cases as low as 5%), as well as uniform pore diameter across the entire AAO thickness. For free-standing nanotemplates, standard heat-treatment options include annealing of the originally amorphous AAO to nanocrystalline gamma or alpha-alumina phase, which further enhances nanotemplate's chemical and thermal stability.

The range of currently available specifications for nanotemplates on Al and other substrates is summarized in the table; specifications for free-standing AAO nanotemplates are listed under UniKera™ standard membranes.

To order nanotemplates, inquire on the availability of custom products with non-standard specifications, and to discuss your specific applications, please fill out our Info/Quote Request Form.

Parameter	AAO on Al *									AAO on non-Al substrates** (custom only)
Parameter	Standard								Custom	AAO on non-Al substrates** (custom only)
Pore diameter, nm (SD 7-10%)	13	18	35	55	73	80	100	150	10 - 200	10 - 35
Pore Density,^§ cm^-2	1·10¹¹	5·10¹⁰	1·10¹⁰	5·10⁹	4·10⁹	4·10⁹, 2·10^{9 §}	4·10⁹, 2·10⁹,^§ 1·10⁹	2·10⁹,^§ 1·10⁹	2·10¹¹ - 2·10⁹	1·10¹¹ - 1·10¹⁰
Pore Period,^§ nm	32	41	107	145	178	178, 251 ^§	178, 251,^§ 344	251,^§ 344	20 - 350	20 - 107
Estimated Porosity,^§ %	9	10	12	12	12	30, 8 ^§	30, 15,^§ 8	32,^§ 17	10 - 50 %	10 - 30 %
AAO Thickness, µm (± 2%)	0.5, 5 and 50							5 and 50	0.1 - 150	0.1 - 5, per Al film thickness
Format / Size *	square shape; 10x10 mm and 65x65 mm; AAO on one or both sides of Al substrate *								from 65x65 mm to 150 mm *‡	per customer substrate size and format (up to 150 mm)
Operating Temperature	No heat treatment: up to 500°C (depending on the environment) Heat treatment option 1: 500°C									N / A
Availability	3-4 weeks if not in-stock								4-6 weeks	4-6 weeks

* AAO on one side of the Al substrates is only available for thicknesses 0.5 and 5 µm.
** Requires Al films on Si, glass or other substrates to be provided by the customer; e-mail for requirements.
^§ Standard pore density, period and porosity values for 80, 100 and 150 nm pore sizes
‡ Custom AAO on Al nanotemplates can be cut into smaller size pieces per customer requirements

Some of the applications for the featured nanotemplates and nanomembranes include:

Host for templated synthesis of the arrays of uniform nanostructures (nanowires, nanotubes, quantum rods, and other nanostructures).
Gas separation membranes.
Liquid ultra- and nanofiltration membranes .
Catalytic membrane reactors.
Membrane standards.
Nanoporous substrates for bioanalytical applications, such as tissue culturing and bioanalysis.
Precursor for ceramic microsystems, etc.

Partnerships are welcomed for joint application development in these areas. If you need additional information, are interested in membrane evaluation, or would like to discuss further, please email us at info@synkera.com


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