Table 1. Crystallite Size of Zinc Oxide Nanoparticle, as Estimated Using the Scherrer Equation

Miller Indices (hkl)	Diffraction angle 2θ (degree)	FWHM (β) (degree)	Crystallite size (nm)
(100)	31.77	0.373	23.14
(002)	34.42	0.295	29.46
(101)	36.26	0.400	21.84
(102)	47.54	0.477	19.02
(210)	56.61	0.529	17.82
(103)	62.86	0.493	19.73
(212)	67.39	0.535	18.65
(201)	69.10	0.540	18.67
Average			21.04