Size (diameter – D), absorption band and band gap of ZnO nanoparticles.

Sample	FESEM	UV-Vis		XRD
	D (nm)	l max (nm)	Band gap (eV)	Scherrer method	W–H method
				D (nm)	ε		R 2	D (nm)
A1	60–90	381	2.15	34.0	0.0014	0.00414	0.9718	33.5
A2	60–120	383	2.0	28.6	0.0025	0.00473	0.9807	29.3
A3	30–120	376	1.8	32.6	0.0022	0.00459	0.9790	30.2
B1	30–90	375	2.65	33.9	0.0015	0.00444	0.9079	31.2
B2	30–90	378	2.2	26.3	0.0025	0.00425	0.9875	32.6
B3	40–60	384	2.3	28.7	0.0019	0.00490	0.9788	28.3
C1	20–60	380	2.35	30.5	0.0015	0.00446	0.9402	31.2
C2	20–40	376	2.15	24.0	0.0029	0.00531	0.9849	26.1
C3	30–50	375	2.1	22.9	0.0026	0.00592	0.9919	23.4