Correction to: Applied Nanoscience https://doi.org/10.1007/s13204-020-01359-1

Unfortunately, the Fig. 3 has been published incorrectly in the online published article. The correct Fig. 3 is given below:

Fig. 3
figure 1

TEM images of ZnO (a) and ZnO-ZnMn2O4 (b) samples