Functional Properties of Donor (Al) and Acceptor (Cu) Codoped High Dielectric Constant ZnO Nanoparticles

Figure 4

WH plots of (a) 0.25%, (b) 0.5%, (c) 0.75% Al and Cu codoped ZnO, and (d) pristine ZnO annealed at 600°C.

(a)

(b)

(c)

(d)