Table 3. Doped ZnO: optical and magnetic properties.

Ref.	Dopant	Dopant Concentration	Bandgap (eV)	Dopant Concentration	Saturation Magnetization (emu/g)
[259–261]	Cu	0, 10%	3.35, 3.30, respectively	0.05–0.20 mol.%	0.011–0.063
[180,262]	Fe	Zn1-xFexO (x = 0, 0.01, 0.04, 0.05, 0.06)	3.243, 3.236, 3.216,3.197, 3.195, respectively	x = 0.20	1.74
[263]	Cr	0.00 to 4.63 at.%	from 3.26 to 3.15	2.49 at.%	4.86
[175]	Co	0, 5,10 at.%	3.10, 3.17, 3.24, respectively	5 at.%, 10 at.%	1.42,1.75
[264–267]	Mn	0, 3, 5,10,15 mol.%	3.31, 3.35, 3.38, 3.40, 3.42, respectively	3.3 mol.%, 4.2 mol.%	0.00123, 0.015
[268]	Ni	Zn1-xNixO (x = 0, 0.05)	3.28, 3.32, respectively	x = 0.05	2.9-2.8
[269,270]	Al	0, 2 at.%	3.07, 3.12, respectively	0.03 at.%	0.012
[138,271]	Mg	0, 2.5%, 5%, 7.5%	3.36, 3.27, 3.13, 3.04, respectively	3%	1.05 × 10−3
[272]	Nd	ZnO, Zn0.97Nd0.03O	3.34, 3.12, respectively	x = 0.03	0.67
[273,274]	Sm	0,1, 3, 5 mol.%	3.27, 3.25, 3.10, 3.05, respectively	0%–8%	0.45, 0.363, 1.694,3.613 and 2.197 emu/cm3
[275,276]	Eu	0,1, 3, 5 mol.%	3.18, 3.05, 3.00, 2.94, respectively	10%	0.040
[277]	Tb	Zn1-xTbxO (x = 0, 0.02, 0.05, 0.1)	3.35, 3.31, 3.30, 3.28, respectively	x = 0, 0.02, 0.05, 0.1	0.0042, 0.0276, 0.0359, 0.0519
[117,278]	Gd	0, 3, 6%	2.71, 2.74, 2.98, respectively	1.1%, 3.5%, and 5.1%	0.0001, 0.05, 0.0032
[279,280]	La	1, 5 wt.%	3.12, 3.18, respectively	0, 1 mol.%	0.102,0.232
[281,282]	Ce	0,1, 3 and 5 at.%	3.21, 3.10, 3.08, 2.96, respectively	0,0.96,1.96, 2.52 and 3.12 at.%	1.895 × 10−3, 31.612 × 10−3, 26.818 × 10−3, 26.136 × 10−3, 23.608 × 10−3