title: Graphene Quantum Dots Doping of MoS2 Monolayers.
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.
authors.affiliation: State Key Lab for Mesoscopic Physics, School of Physics, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.
authors.forename: Ziwei
authors.initials: Z
authors.lastname: Li
authors.affiliation: Department of Chemistry, Richard E. Smalley Institute for Nanoscale Science and Technology, Rice University, 6100 Main Street, Houston, TX, 77005, USA.
authors.forename: Ruquan
authors.initials: R
authors.lastname: Ye
authors.affiliation: State Key Lab for Mesoscopic Physics, School of Physics, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Feng
authors.affiliation: State Key Lab for Mesoscopic Physics, School of Physics, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.
authors.forename: Yimin
authors.initials: Y
authors.lastname: Kang
authors.affiliation: State Key Lab for Mesoscopic Physics, School of Physics, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.
authors.forename: Xing
authors.initials: X
authors.lastname: Zhu
authors.affiliation: Department of Chemistry, Richard E. Smalley Institute for Nanoscale Science and Technology, Rice University, 6100 Main Street, Houston, TX, 77005, USA.
authors.forename: James M
authors.initials: JM
authors.lastname: Tour
authors.affiliation: State Key Lab for Mesoscopic Physics, School of Physics, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China.|Collaborative Innovation Center of Quantum Matter, Beijing, 100871, China.
authors.forename: Zheyu
authors.initials: Z
authors.lastname: Fang
keywords: MoS2; charge transfer; doping; graphene quantum dots; heterostructures; photoluminescence