title: Origin of Improved Optical Quality of Monolayer Molybdenum Disulfide Grown on Hexagonal Boron Nitride Substrate.
abstract: Monolayer MoS2 is synthesized on hexagonal boron nitride (h-BN) flakes with a simple, high-yield method. Monolayer MoS2 on h-BN exhibits improved optical quality. Combining the theoretical and experimental analysis, it is concluded that the enhanced photoluminescence and Raman intensities of monolayer MoS2 probably originate from the relatively weak doping effect from the h-BN substrate rather than the optical interference effect.
authors.affiliation: State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China.|Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Wan
authors.affiliation: State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China.
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.affiliation: State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.affiliation: State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China.|Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China.
authors.forename: Bowen
authors.initials: B
authors.lastname: Sheng
authors.affiliation: State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China.
authors.forename: Kun
authors.initials: K
authors.lastname: Zhang
authors.affiliation: State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China.
authors.forename: Yilun
authors.initials: Y
authors.lastname: Wang
authors.affiliation: State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China.
authors.forename: Qingjun
authors.initials: Q
authors.lastname: Song
authors.affiliation: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China.
authors.forename: Nannan
authors.initials: N
authors.lastname: Mao
authors.affiliation: State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China.
authors.forename: Yanping
authors.initials: Y
authors.lastname: Li
authors.affiliation: State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China.|Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China.
authors.forename: Xinqiang
authors.initials: X
authors.lastname: Wang
authors.affiliation: Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China.
authors.forename: Jin
authors.initials: J
authors.lastname: Zhang
authors.affiliation: State Key Lab for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China.|Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China.
authors.forename: Lun
authors.initials: L
authors.lastname: Dai
keywords: doping effects; hexagonal boron nitride substrates; monolayer molybdenum disulfide; photoluminescence; raman spectra