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445. 


In-depth electrical characterization of carrier transport in ambipolar Si-NW Schottky-barrier FETs



D.-Y. Jeon, T. Baldau, S. J. Park, S. Pregl, L. Baraban, G. Cuniberti, T. Mikolajick, W. Weber

IEEE ESSDERC (2017)

In this paper the operation mechanism of ambipolar Si-nanowire (Si-NW) Schottky-barrier (SB) FETs is discussed in detail using temperature dependent current-voltage (I-V) contour maps. Thermionic and field emission mechanism limited the overall conduction behavior of ambipolar Si-NW SB-FETs with considerable SB-height. However, Si-channel dominant transports with phonon scattering mechanism occur even in the SB based device at a specific bias condition, where charge carrier injection is saturated with a very thinned SB. Temperature dependent transconductance (gm) behavior, TCAD simulation and extracted activation energy (Eae) maps also support the explained operation principle of ambipolar Si-NW SB-FETs.



doi absolute link10.1109/ESSDERC.2017.8066652
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