Abstract
Pentacene thin film transistors (TFTs) on a high-κ Gd 2O3 gate insulator layer were fabricated and characterized. The Gd2O3 layer was grown by ion beam assisted deposition (IBAD) on a heavily-doped silicon substrate in ultra high vacuum, where the measured dielectric constant of the oxide layer was about 7.4. The maximum field effect mobility and the on/off ratio of the TFTs were 0.1 cm2/Vs and about 103, respectively. The threshold voltage of the device was dramatically decreased (15.3 → -3.5 V) as the high-κ Gd2O3 layer replaced the SiO2 layer.
Original language | English |
---|---|
Pages (from-to) | 351-354 |
Number of pages | 4 |
Journal | Synthetic Metals |
Volume | 146 |
Issue number | 3 |
DOIs | |
State | Published - 3 Nov 2004 |