2.6k citations · 7.1k across the 8 of their papers we have counts for
8 papers
Optical models for thin layers
Yilei Li, Tony F. Heinz
We provide a systematic study of the optical models for thin layers: the 3D model, the 2D model and the linearized 2D model. We show that the 2D model is applicable for layers with…
Bright visible light emission from graphene
Young Duck Kim, Hakseong Kim, Yujin Cho +18
Graphene and related two-dimensional materials are promising candidates for atomically thin, flexible, and transparent optoelectronics. In particular, the strong light-matter inter…
Measurement of the optical dielectric function of transition metal dichalcogenide monolayers: MoS2, MoSe2, WS2 and WSe2
Yilei Li, Alexey Chernikov, Xian Zhang +7
We report a determination of the complex in-plane dielectric function of monolayers of four transition metal dichalcogenides: MoS2, MoSe2, WS2 and WSe2, for photon energies from 1.…
Measurement of lateral and interfacial thermal conductivity of single- and bi-layer MoS2 and MoSe2 using refined optothermal Raman technique
Xian Zhang, Dezheng Sun, Yilei Li +6
Atomically thin materials such as graphene and semiconducting transition metal dichalcogenides (TMDCs) have attracted extensive interest in recent years, motivating investigation i…
Photonic and plasmonic guiding modes in graphene-silicon photonic crystals
Tingyi Gu, Andrei Andryieuski, Yufeng Hao +6
We report systematic studies of plasmonic and photonic guiding modes in large-area chemical-vapor-deposition-grown graphene on nanostructured silicon substrates. Light interaction…
Valley Splitting and Polarization by the Zeeman Effect in Monolayer MoSe2
Yilei Li, Jonathan Ludwig, Tony Low +12
We have measured circularly polarized photoluminescence in monolayer MoSe2 under perpendicular magnetic fields up to 10 T. At low doping densities, the neutral and charged excitons…
Atomically thin p-n junctions with van der Waals heterointerfaces
Chul-Ho Lee, Gwan-Hyoung Lee, Arend M. van der Zande +10
Semiconductor p-n junctions are essential building blocks for modern electronics and optoelectronics. In conventional semiconductors, a p-n junction produces depletion regions of f…
Exciton Binding Energy and Nonhydrogenic Rydberg Series in Monolayer WS2
Alexey Chernikov, Timothy C. Berkelbach, Heather M. Hill +6
We have experimentally determined the energies of the ground and first four excited excitonic states of the fundamental optical transition in monolayer WS2, a model system for the…