Synthesis and Optical Characterization of Mg_1-xNi_xO Nanostructures

Figure 4

Scanning electron micrographs (a, b, and c) of sol-gel products presumably of oxalates after drying at 100°C for 24 h and (d, e, and f) of corresponding oxide powders, formed by decomposition at 600°C for 2 h each in air for Ni/(Ni+Mg) atomic ratio (𝑥) equal to 0.01, 0.05, and 0.10, respectively.

(a)

(b)

(c)

(d)

(e)

(f)