Figure 4 | Scientific Reports

Figure 4

From: Three-dimensional Aerographite-GaN hybrid networks: Single step fabrication of porous and mechanically flexible materials for multifunctional applications

Figure 4

Cathodoluminescence from the HVPE synthesized AG-GaN 3D hybrid network: (a) SEM image taken from a fragment of AG-GaN hybrid network, (b) CL spectrum corresponding to AG-GaN specimen in (a), Monochromatic micro-CL images for (c) Ultra-violet, (d) Yellow, (e) Red emissions respectively. (f) UV-yellow color composite micro-CL image corresponding to AG-GaN specimen in (a). [The violet curve in figure 4(b) corresponds to the CL spectrum of bulk crystal GaN in which the CL peak at ~3.4 eV is attributed to GaN and the ~1.7 eV peak is the corresponding second order diffraction artifact from the grating].

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