Increasing the Solubility Limit for Tetrahedral Aluminium in ZnO:Al Nanorods by Variation in Synthesis Parameters

Figure 3

Al-NMR spectra (with integral lines) of the ZnO:Al nanorods solvothermally treated at 200°C for 6h (a), 48 h (b), 96 h (c), and for 6 h at 200°C while stirring (d). The percentages below the Al-NMR spectra express the respective amount of aluminium in tetrahedral position.

(a)

(b)

(c)

(d)