Annealing temperature (˚C)

Average particle size (nm)

Root mean square roughness (RMS) (nm)

Average height (nm)

Maximum height

(nm)

150

168

2.84

17.22

42.01

250

171

4.89

17.22

43.15

380

195

5.89

24.23

63.33

450

211

11.17

40.27

88.48

550

230

33.19

80.32

173.65