Co-sputtered metal and polymer nanocomposite films and their electrical responses for gas sensing application

- The well-controlled Ti-PTFE composite films were prepared by co-sputtering.
- Ti clusters showed particle sizes varied between 10 and 30 nm in the PTFE matrix.
- The swelling of polymer is the driving force to change interparticle distance and therefore a change in resistance.
- The sensitivities of the Ti-PTFE devices were found to be in a range of 1.01-1.04.