Low temperature solution-processed IGZO thin-film transistors

Wangying Xu, Luyao Hu, Chun Zhao, Lingjiao Zhang, Deliang Zhu*, Peijiang Cao, Wenjun Liu, Shun Han, Xinke Liu, Fang Jia, Yuxiang Zeng, Youming Lu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

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 languageEnglish
Pages (from-to)554-560
Number of pages7
JournalApplied Surface Science
Volume455
DOIs
Publication statusPublished - 15 Oct 2018

Keywords

  • IGZO
  • Low-temperature
  • Solution-processed
  • Thin-film transistors

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