Graphene versus ohmic metal as source-drain electrode for MoS2 nanosheet transistor channel

Young Tack Lee; Kyunghee Choi; Hee Sung Lee; Sung Wook Min; Pyo Jin Jeon; Do Kyung Hwang; Hyoung Joon Choi; Seongil Im

doi:10.1002/smll.201303908

Graphene versus ohmic metal as source-drain electrode for MoS₂ nanosheet transistor channel

Young Tack Lee, Kyunghee Choi, Hee Sung Lee, Sung Wook Min, Pyo Jin Jeon, Do Kyung Hwang, Hyoung Joon Choi, Seongil Im

Department of Physics

Research output: Contribution to journal › Article › peer-review

88 Citations (Scopus)

Abstract

Two MoS₂ field-effect transistors are compared using graphene and Au/Ti source-drain contacts in respects of their Ohmic and OFF behavior on an identical MoS₂ nanosheet. As a result, graphene-contact appears not only to show superior ohmic behavior to those of Au/Ti but also more enhanced OFF state behavior. Such results are attributed to the electric-field-induced work function tuning of exfoliated graphene.

Original language	English
Pages (from-to)	2356-2361
Number of pages	6
Journal	Small
Volume	10
Issue number	12
DOIs	https://doi.org/10.1002/smll.201303908
Publication status	Published - 2014 Jun 25

All Science Journal Classification (ASJC) codes

Biotechnology
Biomaterials
Chemistry(all)
Materials Science(all)

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10.1002/smll.201303908

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AU - Min, Sung Wook

AU - Jeon, Pyo Jin

AU - Hwang, Do Kyung

AU - Choi, Hyoung Joon

AU - Im, Seongil

PY - 2014/6/25

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N2 - Two MoS2 field-effect transistors are compared using graphene and Au/Ti source-drain contacts in respects of their Ohmic and OFF behavior on an identical MoS2 nanosheet. As a result, graphene-contact appears not only to show superior ohmic behavior to those of Au/Ti but also more enhanced OFF state behavior. Such results are attributed to the electric-field-induced work function tuning of exfoliated graphene.

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Graphene versus ohmic metal as source-drain electrode for MoS₂ nanosheet transistor channel

Abstract

All Science Journal Classification (ASJC) codes

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