TIPS-Pentacene:PS Blend Organic Field-Effect Transistors with Hybrid Gate Dielectric on Paper Substrate

We report on the fabrication of bottom gate top contact organic field effect transistors with hybrid gate dielectric and TIPS-Pentacene:PS blend as active layer on PowerCoat™ HD 230 paper substrate. The hybrid dielectric layer leads the devices operated at relatively low voltage of -10 V with avg. and maximum field effect mobility of 0.52(±0.16) and 0.78 cm
²
V
^-1
S
^-1
respectively, with near zero threshold voltage and on-off current ratio approaching ~10
⁴
. The devices have shown excellent operational stability when tested with DC bias stress of VDS=VGS=-10 V for 1 h and minuscule changes in electrical characteristics were observed with continuous multiple transfer cycle scans. In addition, we have demonstrated a resistive load inverter circuit with varying the load resistance with these paper OFETs.