Abstract
We investigated solvent-mediated threshold voltage (VTH) shift in solution-processed zinc-tin oxide (ZTO) thin film transistors (TFTs). The ZTO TFTs showed negative VTH shift when exposed to various organic solvents such as hexane, isopropanol, and chlorobenzene. Additionally the magnitude of the shift showed a close relationship with the dielectric constant or electronegativity of the solvent molecules. From the experiments, one of the origins of the VTH shift in the transparent oxide TFTs appears to be closely correlated with the dipole interaction of the solvent molecules and ZTO back channel surface.
Original language | English |
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Article number | 092105 |
Journal | Applied Physics Letters |
Volume | 97 |
Issue number | 9 |
DOIs | |
State | Published - 30 Aug 2010 |