Figure 4 | Scientific Reports

Figure 4

From: Performance modulation of α-MnO2 nanowires by crystal facet engineering

Figure 4

Light absorbance and bandgap properties of MnO2-110 and MnO2-210.

(a), UV-Vis absorption spectra of the α-MnO2 nanowires. Inset shows the (αhv)1/2 vs. hv plots (α, absorption coefficient; hv, photon energy). Bandgap values of 0.98 eV and 0.84 eV can be deduced for the exposed (1 1 0) sample and the exposed (2 1 0) sample, respectively. (b), Sketch of possible bandgap alignments of MnO2-110 and MnO2-210.

Back to article page