We propose theoretically a scheme to overcome such an obstacle, by applying a tilted exchange field through the magnetic proximity effect on monolayer MoS2. While the in-plane component of the exchange field br
www.nature.com/scientificreports OPEN Exciton Emission Intensity Modulation of Monolayer MoS2 via Au Plasmon Coupling received: 28 September 2016 accepted: 16 December 2016 Published: 30 January 2017 B. Mukherjee1, N. Kaushik1, Ravi P. N. Tripathi2, A. M. Joseph1, P. K....
In nonlinear pump/probe experiments of monolayer MoS2, a negative signal at energies below the exciton resonance was attributed to evidence of induced absorption from the exciton-to-biexciton transition; however, bandgap renormalization can also give rise to a similar negative pump/probe signal36. ...
Accessing the quality of the monolayer hetero- junction is so far mainly based on electron microscopy techniques. A depletion width on the order of few nanometers is reported using scanning tunneling microscopy and spectroscopy techni- ques36. The electronic structures and band alignments of TMD LHs...
Using a combination of micro-Raman and time-resolved micro-photoluminescence, we found that the exciton spectrum in unstrained layers in complete agreement with the theoretical predictions. In the A-exciton series, the bright state is the lowest in the monolayer, while in the bilayer the exciton ...
Monolayer transition metal dichalcogenides (TMDs) such as MoS2 feature strong light absorption, pronounced exciton physics at room-temperature, and an emergent "valley" degrees of freedom. These and other atomically thin materials have emerged as a growing library for constructing and tuning novel ...
et al. Photoluminescence emission and Raman response of monolayer MoS2, MoSe2, and WSe2. Opt. Express 21, 4908–4916 (2013). Article ADS CAS PubMed Google Scholar Ross, J. S. et al. Electrical control of neutral and charged excitons in a monolayer semiconductor. Nat. Commun. 4, 1474...
Figure 1: Influence of graphene on the electronic bandgap of MoS2monolayer. (a) Optical microscope and AFM images of MoS2monolayer/graphene heterostructure. In the bottom, the scale bar is 2 μm. (b) Theoretically predicted energy band structure corresponding to the direct transitions in the ...
& Kis, A. Ultrasensitive photodetectors based on monolayer MoS2. Nat. Nanotechnol. 8, 497–501 (2013). 31. Li, Y. et al. Measurement of the optical dielectric function of monolayer transition-metal dichalcogenides: MoS2, MoSe2, WS2, and WSe2. Phys. Rev. B 90, 205422 (2014). 32. ...
Due to the broken inversion symmetry, inducing the spin–orbit coupling, there is a large splitting of ~ 160 meV over the valence band in monolayer MoS2, giving rise to A- and B-excitons [16, 18–20]. Generally, A-exciton behav- ior dominates the emission of the MoS2, ...