Dear all,

I tried to realize an OTFT using PMMA as gate insulator and PEDOT/PSS
as electrodes. In the top gate structure the PEDOT/PSS penetrated in
the PMMA layer creating short circuit with source and drain. I think
that PMMA layer is porous. I've also tried to change solvents,
temperatures, deposition conditions, deposition techniques.

How can i solve this problem?

Thank you
Emanuele