Figure 3. EDS spectra of undoped ZnO

From

Nickel Sub-lattice Effects on the Optical Properties of ZnO Nanocrystals

Sajid Husain, F. Rahman, Nasir Ali, P. A. Alvi

Journal of Optoelectronics Engineering. 2013, 1(1), 28-32 doi:10.12691/joe-1-1-5