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 brightens the dark exciton by spin mixing, the out-of-plane field can effectively gate ...
et al. Momentum-resolved observation of exciton formation dynamics in monolayer WS2. Nano Lett. 21, 5867–5873 (2021). Article ADS CAS PubMed Google Scholar Li, H. et al. Imaging moiré flat bands in three-dimensional reconstructed WSe2/WS2 superlattices. Nat. Mater. 20, 945–950 (2021...
It has been shown that the band structure and the excitonic transitions can be tuned by straini... R Schmidt,I Niehues,R Schneider,... - 《2d Materials》 被引量: 17发表: 2016年 Molecular-beam epitaxy of monolayer and bilayer WSe2: A scanning tunneling microscopy/spectroscopy study and ...
We also demonstrate that environments with different dielectric constants have a profound effect on the electronic structure of the monolayer. Our results can be used for engineering the electronic properties of MoS2 and other transition-metal dichalcogenides and may explain the experimentally observed ...
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 ...
Theory predicts that stacked MoS2and WSe2monolayer forms ty... P Bo,G Yu,X Liu,... - 《2d Materials》 被引量: 24发表: 2016年 Influence of multi-exciton correlations on nonlinear polariton dynamics in semiconductor microcavities Using two-dimensional spectroscopy, we resolve multi-polariton ...
作者在一个相对旋转角度为16∘的转角MoS2/MoSe2异质结构上演示了其方法,该结构允许在UBZs中不同高对称点之间发生跃迁,由原子重构和层间不匹配确定。通过分析,作者揭示了一种独特的动量混合激子性质,其状态由层间和层内电子–空穴激发组成。 Fig. 3 Unfolded excitons and dominant band contributions....
Our findings show that the additional WSe 2 monolayer in the trilayer system enhances the low-energy photoluminescence by more than an order of magnitude depending on the WSe 2 /WSe 2 twist-angle in comparison to their WSe 2 /MoSe 2 heterobilayer counterpart. Furthermore, combining density ...
作者在一个相对旋转角度为16∘的转角MoS2/MoSe2异质结构上演示了其方法,该结构允许在UBZs中不同高对称点之间发生跃迁,由原子重构和层间不匹配确定。通过分析,作者揭示了一种独特的动量混合激子性质,其状态由层间和层内电子–空穴激发组成。 Fig. 3 Unfolded excitons and dominant band contributions....
TMDC crystals, including MoS2, MoSe2, WS2 and WSe2, are semiconductors that form layered structures with a plane of hexag- onal metal atoms surrounded by two planes of chalcogen atoms in trigonal prismatic coordination. At monolayer thickness, these crys- tals exhibit direct band gaps at the K...