Detailed Information

Cited 0 time in webofscience Cited 2 time in scopus
Metadata Downloads

Electrothermal Local Annealing via Graphite Joule Heating on Two-Dimensional Layered Transistors

Authors
Yun, YoojooPark, JeongminKim, HyunBae, Jung JunJoo, Min-KyuSuh, Dongseok
Issue Date
Jul-2018
Publisher
AMER CHEMICAL SOC
Keywords
electrothermal local annealing (ELA); transition-metal dichalcogenides (TMDs); molybdenum disulfide (MoS2); surface adsorbates; Coulomb scattering
Citation
ACS APPLIED MATERIALS & INTERFACES, v.10, no.30, pp 25638 - 25643
Pages
6
Journal Title
ACS APPLIED MATERIALS & INTERFACES
Volume
10
Number
30
Start Page
25638
End Page
25643
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/4392
DOI
10.1021/acsami.8b06630
ISSN
1944-8244
1944-8252
Abstract
A simple but powerful device platform for electrothermal local annealing (ELA) via graphite Joule heating on the surface of transition-metal dichalcogenide, is suggested here to sustainably restore intrinsic electrical properties of atomically thin layered materials. Such twodimensional materials are easily deteriorated by undesirable surface/interface adsorbates and are screened by a high metalto-semiconductor contact resistance. The proposed ELA allows one to expect a better electrical performance such as an excess electron doping, an enhanced carrier mobility, and a reduced surface traps in a monolayer molybdenum disulfide (MoS2)/graphite heterostructure. The thermal distribution of local heating measured by an infrared thermal microscope and estimated by a finite element calculation shows that the annealing temperature reaches up to >400 K at ambient condition and the high efficiency of site-specific annealing is demonstrated unlike the case of conventional global thermal annealing. This ELA platform can be further promoted as a practical gas sensor application. From an O-2 cycling test and a low-frequency noise spectroscopy, the graphite on top of the MoS2 continuously recovers its initial condition from surface adsorbates. This ELA technique significantly improves the stability and reliability of its gas sensing capability, which can be expanded in various nanoscale device applications.
Files in This Item
Go to Link
Appears in
Collections
ICT융합공학부 > 응용물리전공 > 1. Journal Articles

qrcode

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

Related Researcher

Researcher Joo, Min Kyu photo

Joo, Min Kyu
첨단소재·전자융합공학부 (신소재물리전공)
Read more

Altmetrics

Total Views & Downloads

BROWSE