Dynamics of Threshold Voltage Shifts in Organic and Amorphous Silicon Field-Effect Transistors

Revealing buried interfaces to understand the origins of threshold voltage shifts in organic field-effect transistors.

Organic Field-Effect Transistors with Reversible Threshold Voltage Shifts for Memory Element

We introduce an charge-accepting layer on a poly(methyl methacrylate) (PMMA) dielectric to investigate the reversible threshold voltage (Vth) shifts in all-polymer n-channel organic field-effect transistor (OFET) using an organic semiconductor of an poly{[N,N’-bis(2-octyldodecyl)-naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5’-(2,2’-bithiophene)} (P(NDI2OD-T2)). Top contact drain-sour...

Modeling Bias Stress Effect on Threshold Voltage for Amorphous Silicon Thin-Film Transistors and Circuits

In this paper, we study amorphous silicon thin-lmtransistor (TFT) degradation under bias stress effect. To model threshold voltage shift with bias stress effect, fabricated samples are measured for I-V data with bias stress in variations of temperature. Rensselaer Polytechnic Institute (RPI) model is thus adopted to extract model parameters, such as the flat band voltage (VFB), the characteris...

Current Path in Amorphous-silicon Field Effect Transistors

On-resistance of amorphous-silicon field effect transistors with staggered electrodes was investigated. It was found that dependences of the on-resistance on geometrical parameters were classified into two groups. The origin was attributed to the residual resistance between the nt el-ectrode and the channel which was formed at the silicon-silicon dioxide interface. The resistance was analyzed b...

Theory of the field-effect mobility in amorphous organic transistors

The field-effect mobility in an organic thin-film transistor is studied theoretically. From a percolation model of hopping between localized states and a transistor model an analytic expression for the field-effect mobility is obtained. The theory is applied to describe the experiments by Brown et al. [Synth. Met. 88, 37 (1997)] on solution-processed amorphous organic transistors, made from a p...