Fig. 5.
TLM analysis of bottom-contact and top-contact DPh-DNTT TFTs fabricated on flexible PEN substrates. The TFTs have a gate-dielectric thickness of 5.3 nm, channel lengths ranging from 8 to 60 µm, and a channel width of 200 µm. a, b Linear fits to the total width-normalized resistance (RW) at selected gate-overdrive voltages (VGS−Vth). c Width-normalized contact resistance (RCW) plotted as a function of the gate-overdrive voltage. The error bars correspond to the standard error from the linear regression at each gate-overdrive voltage. d Intrinsic channel mobility (µ0) plotted as a function of the gate-overdrive voltage