Abstract
We reported the low-temperature high performance IGZO TFTs by solution processing. The influence of IGZO composition over broad range on thin films and devices properties were investigated by a wide range of characterization techniques. The schematic of TFT solution-processed IGZO TFTs mobility with different compositions has been obtained. In order to achieve decent TFT performance, the In content should be much high for solution-processed IGZO TFTs. The optimal solution-processed IGZO TFTs with In:Ga:Zn = 5:1:1 composition exhibited a large mobility of 9.1 cm 2 V −1 s −1 , low subthreshold swing of 0.22 V/decade, and high on/off ratio of 10 6 at 300 °C processing temperature.
Original language | English |
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Pages (from-to) | 554-560 |
Number of pages | 7 |
Journal | Applied Surface Science |
Volume | 455 |
DOIs | |
Publication status | Published - 15 Oct 2018 |
Keywords
- IGZO
- Low-temperature
- Solution-processed
- Thin-film transistors