Self-powered photovoltaic photodetector established on lateral monolayer MoS2-WS2 heterostructures

We report the photovoltaic light sensors based on individual monolayer MoS2-WS2 in-plane heterostructures which exhibit a spectral responsivity (Rλ) of 4.36 mA/W and detectivity (D*) of 4.36 × 1013 Jones under 28.64 mW/cm2 @ 532 nm.180