论文部分内容阅读
The van der Waals interfaces of two-dimensional(2D)semiconductor are central to new device concepts and emerging technologies in light-electricity interconversion where the efficient charge separation is key factor.Contrary to general expectation,efficient electron-hole separation can occur in vertically stacked transition-metal dichalcogenide(TMD)heterostructure bilayers through ultrafast charge transfer between the neighboring layers despite their weak van der Waals(vdW)bonding.