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Title: Ferroelectric-Domain-Patterning-Controlled Schottky Junction State in Monolayer MoS 2

Journal Article · · Physical Review Letters

Here, we exploit scanning probe controlled domain patterning in a ferroelectric top-layer to induce nonvolatile modulation of the conduction characteristic of monolayer MoS2 between a transistor and a junction state. In the presence of a domain wall, MoS2 exhibits rectified I-V that is well described by the thermionic emission model. The induced Schottky barrier height ΦeffΒ varies from 0.38 eV to 0.57 eV and is tunabe by a SiO2 global back-gate, while the tuning range of ΦeffΒ the barrier height depends sensitively on the conduction band tail trapping states. Our work points to a new route to achieve programmable functionalities in van der Waals materials and sheds light on the critical performance limiting factors in these hybrid systems.

Research Organization:
Univ. of Nebraska, Lincoln, NE (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0016153
OSTI ID:
1400412
Alternate ID(s):
OSTI ID: 1372585
Journal Information:
Physical Review Letters, Vol. 118, Issue 23; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 49 works
Citation information provided by
Web of Science

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Cited By (6)

Reconfigurable two-dimensional optoelectronic devices enabled by local ferroelectric polarization journal July 2019
Programmable transition metal dichalcogenide homojunctions controlled by nonvolatile ferroelectric domains journal January 2020
Electrically induced, non-volatile, metal insulator transition in a ferroelectric-controlled MoS 2 transistor journal January 2018
Temperature behavior of graphene conductance induced by piezoelectric effect in a ferroelectric substrate journal August 2018
Thickness dependence of domain size in 2D ferroelectric CuInP 2 S 6 nanoflakes journal November 2019
Graphene Exfoliation at a Ferroelectric Domain Wall Induced by the Piezoelectric Effect: Impact on the Conductance of the Graphene Channel journal November 2017