Conduction Threshold in Accumulation-Mode InGaZnO Thin Film TransistorsReport as inadecuate


Conduction Threshold in Accumulation-Mode InGaZnO Thin Film Transistors


Conduction Threshold in Accumulation-Mode InGaZnO Thin Film Transistors - Download this document for free, or read online. Document in PDF available to download.

Publication Date: 2016-03-02

Journal Title: Scientific Reports

Publisher: Nature Publishing Group

Volume: 6

Number: 22567

Language: English

Type: Article

Metadata: Show full item record

Citation: Lee, S., & Nathan, A. (2016). Conduction Threshold in Accumulation-Mode InGaZnO Thin Film Transistors. Scientific Reports, 6 (22567)

Description: This is the final version of the article. It first appeared from Nature Publishing Group via http://dx.doi.org/10.1038/srep22567

Abstract: The onset of inversion in the metal-oxide-semiconductor field-effect transistor (MOSFET) takes place when the surface potential is approximately twice the bulk potential. In contrast, the conduction threshold in accumulation mode transistors, such as the oxide thin film transistor (TFT), has remained ambiguous in view of the complex density of states distribution in the mobility gap. This paper quantitatively describes the conduction threshold of accumulation-mode InGaZnO TFTs as the transition of the Fermi level from deep to tail states, which can be defined as the juxtaposition of linear and exponential dependencies of the accumulated carrier density on energy. Indeed, this permits direct extraction and visualization of the threshold voltage in terms of the second derivative of the drain current with respect to gate voltage.

Keywords: electrical and electronic engineering, superconducting devices

Sponsorship: Authors thank to the EU-FP7 under Project ORAMA CP-IP 246334-2.

Identifiers:

This record's URL: http://dx.doi.org/10.1038/srep22567https://www.repository.cam.ac.uk/handle/1810/254217

Rights: Attribution 2.0 UK: England & Wales

Licence URL: http://creativecommons.org/licenses/by/2.0/uk/





Author: Lee, SungsikNathan, Arokia

Source: https://www.repository.cam.ac.uk/handle/1810/254217



DOWNLOAD PDF




Related documents