Fabrication of nanoporous nuclear track membranes

Polyethylene terephthalate (PET) and polycarbonate (PC) films were irradiat ed by S, Kr and Xe ions and were illuminated with ultraviolet light. The no rmalized track etch rate for PET and PC films etched in different condition was measured by conductometric experiments. It is shown that normalized tr ack etch rate can be over 1000 for PET films, 2000 for PC films under optim ized condition. TEM photographs of copper nanowires electroplated into nano porous nuclear track membranes show that the narrowest wire diameter of cop per nanowires is 20nm and that the pore diameter calculated by conductometr ic experiments is in agreement with the wire diameter measured by TEM when the pore diameter is over 30nm.