Figure 3
From: Visualizing Degradation of Black Phosphorus Using Liquid Crystals
The LC alignment and the Raman analysis on the UV exposed BP flake. (a) The optical image of the BP before any exposure. (b–d) The LC alignment on the UV exposed flake for 2, 4 and 6 min. The increase in defect density is evident. (e) The optical image of the BP flake after UV exposures. (f,e) The Raman Spectra of the BP Flake with subsequent UV exposure and a Raman intensity plot, respectively. (h) The Raman Intensity plot of a relatively thicker flake. (scale bar = 5 µm).
