Molecular intercalation in black phosphorus with tunable bandgaps for infrared photoelectric materials

Molecular intercalation in black phosphorus shows tunable bandgap from 0.3 eV to 1.8 eV (covering from near-infrared to mid-infrared absorption spectra) with increase of intercalated molecule density (from 1 × 10 20 cm −3 to 6.1 × 10 20 cm −3 ).