Table 1 Lattice parameters, crystallite size and lattice strain calculated for examined Nb2O5, ZnO, TiO2 and M102, M103 and M106 P3HT powders and PC70BM C60 and C70 powders using Rietveld refinement.

From: Thermal and optical properties of P3HT:PC70BM:ZnO nanoparticles composite films

Powder

Space group

Lattice parameters, ICDD (Å)

Lattice parameters, calculated (Å)

Crystallite size (nm)

Lattice strain (%)

ZnO (00-036-1451)

P63mc

a = 3.2498

a = 3.250

79 ± 1

0.06 ± 0.01

c = 5.2066

c = 5.207

P3HT1

Orthorhombic, with most likely Pba2 symmetry

 

a = 10.38

6 ± 1

 

b = 6.33

 

c = 16.58

P3HT2

a ≈ 10.3

a = 10.43

8 ± 1

b ≈ 6.6

b = 6.36

c ≈ 16.3

c = 16.63

P3HT3

 

a = 10.38

9 ± 1

 

b = 6.39

 

c 16.76

PC70BM C60

P21/n

 

a = 13.42

95 ± 10

 

b = 15.15

a = 13.47

c = 19.05

b = 15.14

β = 107.01°

PC70BM C70

c = 19.01

a = 13.55

7 ± 1

β = 106.9°

b = 15.19

 

c = 18.89

 

β = 107.39°