BROWSE

Related Scientist

CINAP's photo.

CINAP
나노구조물리 연구단
more info

ITEM VIEW & DOWNLOAD

High-mobility junction field-effect transistor via graphene/MoS2 heterointerface

Cited 0 time in webofscience Cited 0 time in scopus
35 Viewed 0 Downloaded
Title
High-mobility junction field-effect transistor via graphene/MoS2 heterointerface
Author(s)
Taesoo Kim; Sidi Fan; Sanghyub Lee; Min-Kyu Joo; Young Hee Lee
Publication Date
2020-08
Journal
SCIENTIFIC REPORTS, v.10, no.1, pp.13101
Publisher
NATURE PUBLISHING GROUP
Abstract
© 2020, The Author(s).Monolayer molybdenum disulfide (MoS2) possesses a desirable direct bandgap with moderate carrier mobility, whereas graphene (Gr) exhibits a zero bandgap and excellent carrier mobility. Numerous approaches have been suggested for concomitantly realizing high on/off current ratio and high carrier mobility in field-effect transistors, but little is known to date about the effect of two-dimensional layered materials. Herein, we propose a Gr/MoS2 heterojunction platform, i.e., junction field-effect transistor (JFET), that enhances the carrier mobility by a factor of ~ 10 (~ 100 cm2 V−1 s−1) compared to that of monolayer MoS2, while retaining a high on/off current ratio of ~ 108 at room temperature. The Fermi level of Gr can be tuned by the wide back-gate bias (VBG) to modulate the effective Schottky barrier height (SBH) at the Gr/MoS2 heterointerface from 528 meV (n-MoS2/p-Gr) to 116 meV (n-MoS2/n-Gr), consequently enhancing the carrier mobility. The double humps in the transconductance derivative profile clearly reveal the carrier transport mechanism of Gr/MoS2, where the barrier height is controlled by electrostatic doping
URI
https://pr.ibs.re.kr/handle/8788114/7708
DOI
10.1038/s41598-020-70038-6
ISSN
2045-2322
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse