Fig. 1
From: Degradation of black phosphorus is contingent on UV–blue light exposure
Characterisation of mechanically-exfoliated black phosphorus. a Transmission electron micrograph of a multilayer BP flake. b SAED pattern and c HRTEM image of the crystal shown in a, indicating the presence of crystalline BP. d Micro-Raman spectra of a BP flake showing the presence of all three signature BP modes
