Graphene Quantum Dots Doping of MoS2 Monolayers

Li, Ziwei
Ye, Ruquan
Feng, Rui
Kang, Yimin
Zhu, Xing
Tour, James M.
Fang, Zheyu

Open link

Publication date

January 2015

DOI

10.1002/adma.201501888

Publisher

ADVANCED MATERIALS

ISSN

0935-9648

Journal

issn:1521-4095

Citation count (estimate)

Abstract

Graphene quantum dots (GQDs) interacting with molybdenum disulfide (MoS2 ) monolayers induce an effective photoexcited charge transfer at the interface. Both the photoluminescence (PL) and valley polarization of this GQDs/MoS2 heterostructure can be modulated under various doping charge densities. The photon-exciton interaction is used to explain and calculate the heterostructure PL control, and is further applied to the valley-polarization tuning.? 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.National Natural Science Foundation of China [61422501, 11374023]; National Basic Research Program of China (973 Program) [2015CB932403]; Beijing Natural Science Foundation [L140007]; HFOSR [FA9550-09-1-0581]SCI(E)EIPubMedARTICLEzhyfang@pku...