Material

h, k, l

2θ

(degree)

FWHM

(m)

d (nm)

D (nm)

γ 10⁻³ (nm⁻²)

ε 10⁻³

MAPbI₃

110

14.24

0.30

6.21

26.51

1.42

10.55

220

28.57

0.18

3.12

44.55

0.50

3.15

Medium

4.67

35.53

0.96

6.85

FAPbI₃

001

14.06

0.29

6.30

29.13

1.36

10.44

002

28.17

0.20

3.16

48.55

0.61

3.51

Medium

4.73

38.84

0.98

6.97