Structural, Morphological, Optical, and Room Temperature Magnetic Characterization on Pure and Sm-Doped ZnO Nanoparticles

Table 3

Values of energy band gap and Urbach energy for Zn_1-xSm_xO.

x	Eg (eV)	Eu (eV)
0.00	2.90	2.03
0.01	2.60	6.43
0.02	2.98	4.09
0.04	2.60	4.60
0.06	2.80	4.24
0.08	2.97	3.08
0.10	2.97	2.62