Alumina Membranes
self orderd pores
lithographically ordered pores
Membrane properties
- pore diameter adjustable from 25 nm to 400 nm
- interpore distance of ordered structures 63 nm, 100 nm and 500 nm
- standard deviation < 10%
- flow-through membrane with symmetric pores
- membranes with one-sided closed sack-like pores
- pore depth of symmetric pores from several µm up to 200 µm
- pore surface ratio adjustable with min. 10 %
- hexagonal and cubic pore order
- thermally stable up to 900 ºC (depending on environment)
- functionalizable surface
Example of pore size distribution of a self-ordered alumina pore structure