“…The average size of crystallite was calculated by Debye–Scherrer's formula given in eqn (1). 41,53
where D , K , λ , and β are the crystallite size, shape constant of crystal (0.94), the wavelength of the X-ray source (1.50 nm), and the width of peaks at half of the maximum intensity, respectively. Moreover, ‘Cos θ ’ is the diffraction angle.…”