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. 2019 Dec 5;7(2):1902359. doi: 10.1002/advs.201902359

Figure 4.

Figure 4

Typical absorbance spectra of a) a thin (9 nm) and b) a thick (225 nm) BP flake with incident light polarization along the armchair and zigzag directions. Reproduced with permission.45 Copyright 2015, American Chemical Society. c) Photoluminescence spectra of 2L, 3L, 4L, and 5L BPNSs. Reproduced with permission.165 Copyright 2014, American Chemical Society. d) Photoluminescence peak intensity as a function of polarization detection angle for excitation laser polarized along x (gray), 45° (magenta) and y (blue) directions. Reproduced with permission.166 Copyright 2015, Springer Nature.