Two-dimensional (2D) van der Waals semiconductors with atomic level thickness have various potential for optoelectronic applications, thanks to their unique optical and electrical properties at an atomic layer thickness. A stable excitonic emission of...
Two-dimensional (2D) van der Waals semiconductors with atomic level thickness have various potential for optoelectronic applications, thanks to their unique optical and electrical properties at an atomic layer thickness. A stable excitonic emission of monolayer 2D semiconductors at room temperature, owing to a reduced dielectric screening effect, opens up new research fields on excitonics and valleytronics. Moreover, their low dimensionality without surface dangling bonds allows for unique quantum transport phenomena via artificial van der Waals stacking. In this report, the author introduces selected researches on optoelectronic applications utilizing such unique properties of 2D semiconductors.