Fig. 3: Anisotropic Raman and PL properties of the GeS microribbon.
From: In-plane optical and electrical anisotropy in low-symmetry layered GeS microribbons
a Raman spectra of a GeS microribbon obtained with armchair and zigzag directions of linear polarization, polar plots of Raman intensity of the b B3g, c \({{{\mathrm{A}}}}_{{{\mathrm{g}}}}^1\) and d \({{{\mathrm{A}}}}_{{{\mathrm{g}}}}^2\) vibration modes as a function of excitation-polarization direction, respectively. e Polar PL spectra with linearly polarized light along the armchair and zigzag directions. f Angle-dependent PL intensity as a function of the rotation angle.
