摘要
The optoelectronic properties of two-dimensional(2D)materials can be significantly influenced by charge transfer resulting from surface molecular adsorption.One noteworthy example is observed in WS_(2)monolayers,where the behavior undergoes an anomalous change when exposed to air,primarily due to the adsorption of oxygen molecules.While the acceptor nature ofO_(2)is widely acknowledged as the underlying cause,the precise electron transfer mechanism remains in need of a comprehensive explanation at the atomistic level.
基金
F.R.acknowledges financial support from“Technologically Scalable 2D Materials and Extended Operando Measurement Methodologies for Advanced Device Fabrication”2D-EMMA project-funded by European Union-Next Generation EU within the PRIN 2022 program(D.D.104-02/02/2022 Ministero dell’Universitàe della Ricerca).
