Journal of Nanoscience and Nanotechnology 2013-11-01

Negative gate bias and light illumination-induced hump in amorphous InGaZnO thin film transistor.

Jae-Hong Jeon, Seung-Bum Seo, Han-Sung Park, Hee-Hwan Choe, Jong-Hyun Seo, Kee-Chan Park, Sang-Hee Ko Park

Index: J. Nanosci. Nanotechnol. 13(11) , 7535-9, (2013)

Full Text: HTML

Abstract

While observing the transfer characteristics of a-IGZO TFTs, it was noticed that a hump occurred in the subthreshold regime after light and bias stress. This study analyzes the mechanism of the hump occurrence. It was determined that hump characteristics were related with parasitic TFTs which formed at the peripheral edges parallel with the channel direction. It seems that the negative shift of the transfer characteristics of parasitic TFTs was larger than that of the main TFT under light and bias stress. Therefore, the difference in the negative shift between the main TFT and the parasitic TFT was the origin of the hump occurrence. We investigated the instability of a-IGZO TFTs under negative gate bias with light illumination for various channel structures in order to verify the above mechanism.

Related Compounds

  • Zinc oxide
  • gallium
  • Indium
  • Indium Oxide
  • gallium(iii) oxide

Related Articles:

Zinc absorption by young adults from supplemental zinc citrate is comparable with that from zinc gluconate and higher than from zinc oxide.

2014-02-01

[J. Nutr. 144(2) , 132-6, (2014)]

Retentiveness of various luting agents used with implant-supported prosthesis: an in vitro study.

2014-12-01

[J. Oral Implantol. 40(6) , 649-54, (2014)]

Pure and Mg-doped self-assembled ZnO nano-particles for the enhanced photocatalytic degradation of 4-chlorophenol.

2013-10-01

[J. Environ. Sci. (China) 25(10) , 2157-67, (2013)]

Zinc oxide nanoparticles induce migration and adhesion of monocytes to endothelial cells and accelerate foam cell formation.

2014-07-01

[Toxicol. Appl. Pharmacol. 278(1) , 16-25, (2014)]

Catalytic performance of functionalized IRMOF-3 for the synthesis of glycerol carbonate from glycerol and urea.

2014-06-01

[J. Nanosci. Nanotechnol. 14(6) , 4551-6, (2014)]

More Articles...