Near-direct bandgap $WS{e}_2$/$Re{S}_2$ type-II pn heterojunction for enhanced ultrafast photodetection and high-performance photovoltaics

Abin Varghese, Dipankar Saha, Kartikey Thakar +5

PN heterojunctions comprising layered van der Waals (vdW) semiconductors have been used to demonstrate current rectifiers, photodetectors, and photovoltaic devices. However, a dire…