Defect healing and charge transfer mediated valley polarization in MoS${}_2$/MoSe${}_2$/MoS${}_2$ trilayer van der Waals heterostructures

Alessandro Surrente, Dumitru Dumcenco, Zhuo Yang +7

Monolayer transition metal dichalcogenides (TMDC) grown by chemical vapor deposition (CVD) are plagued by a significantly lower optical quality compared to exfoliated TMDC. In this…