Yunfeng Chen

TL;DR: In this article, a band-engineered van der Waals heterostructures were used to construct visible and mid-wavelength infrared unipolar barrier photodetectors.

TL;DR: High quality p-n junctions based on 2D layered materials (2DLMs) are urgent to exploit, because of their unique properties such as flexibility, high absorption, and high tunability which may be utilized in next-generation photovoltaic devices.

TL;DR: S sulfide niobium (NbS3), a novel transition metal trichalcogenide semiconductor with low-symmetry structure, is introduced into a narrowband 2D material with strong anisotropic physical properties both experimentally and theoretically.