TY  - JOUR
AU  - Epping, Alexander
AU  - Banszerus, Luca
AU  - Güttinger, Johannes
AU  - Krückeberg, Luisa
AU  - Watanabe, Kenji
AU  - Taniguchi, Takashi
AU  - Hassler, Fabian
AU  - Beschoten, Bernd
AU  - Stampfer, Christoph
TI  - Quantum transport through MoS 2 constrictions defined by photodoping
JO  - Journal of physics / Condensed matter Condensed matter
VL  - 30
IS  - 20
SN  - 1361-648X
CY  - Bristol
PB  - IOP Publ.
M1  - FZJ-2020-02431
SP  - 205001 -
PY  - 2018
AB  - We present a device scheme to explore mesoscopic transport through molybdenum disulfide (MoS2) constrictions using photodoping. The devices are based on van-der-Waals heterostructures where few-layer MoS2 flakes are partially encapsulated by hexagonal boron nitride (hBN) and covered by a few-layer graphene flake to fabricate electrical contacts. Since the as-fabricated devices are insulating at low temperatures, we use photo-induced remote doping in the hBN substrate to create free charge carriers in the MoS2 layer. On top of the device, we place additional metal structures, which define the shape of the constriction and act as shadow masks during photodoping of the underlying MoS2/hBN heterostructure. Low temperature two- and four-terminal transport measurements show evidence of quantum confinement effects.
LB  - PUB:(DE-HGF)16
C6  - pmid:29620021
UR  - <Go to ISI:>//WOS:000430508800001
DO  - DOI:10.1088/1361-648X/aabbb8
UR  - https://juser.fz-juelich.de/record/877733
ER  -