Multi-layer MoS2 FET with small hysteresis by using atomic layer deposition Al2O3 as gate insulator

Ah Jin Cho, Suk Yang, Kyung Park, Seok Daniel Namgung, Hojoong Kim, Jang-Yeon Kwon

Research output: Contribution to journalArticle

Abstract

Two-dimensional materials like graphene have great potential to excess the mobility limit of conventional silicon devices. Particularly, MoS2 FETs have high mobility and low off-current simultaneously due to their sizable band-gap. However, large hysteresis in its transfer curve is an obstacle for implementation to logic circuits and switching devices. Here, we report on a multi-layer MoS2 FET using atomic layer deposition Al2O3 as a gate insulator, showing small hysteresis of 0.86 V. It is thought that, such improvement in the hysteresis attributes to the small trap at the MoS2/Al2O3 interface, and it is confirmed through a constant current stress test.

Original languageEnglish
Pages (from-to)Q67-Q69
JournalECS Solid State Letters
Volume3
Issue number10
DOIs
Publication statusPublished - 2014 Jan 1

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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