Highly polarization sensitive infrared photodetector based on black phosphorus-on-WSe2 photogate vertical heterostructure

The highly polarization-sensitive infrared photodetector based on BP-on-WSe2 photogating vertical heterostructure is demonstrated for high infrared identification with a broadband visible and infrared photoresponsivities R of ~103 A/W and ~5×10−1 A/W, respectively and highly polarization infrared photoresponsivity R of ~40 mA/W.348