Table 5 Shape descriptors of predominant planar figures that approximate first-order grains in the FESEM images obtained by watershed segmentation: circularity, roundness, solidity, and Feret’s diameter.
From: Nanoscale 3D spatial analysis of FTO/ZnO/Ag-x films subjected to photocatalytic activity
Sample | Circularity (−) | Roundness (−) | Solidity (−) | Feret’s diameter (nm) |
|---|---|---|---|---|
FTO/ZnO/Ag-0 | 0.46 ± 0.15 | 0.70 ± 0.13 | 0.78 ± 0.06 | 42 ± 14 |
FTO/ZnO/Ag-2 | 0.57 ± 0.14 | 0.70 ± 0.13 | 0.82 ± 0.05 | 46 ± 16 |
FTO/ZnO/Ag-4 | 0.59 ± 0.12 | 0.68 ± 0.13 | 0.82 ± 0.05 | 21 ± 5 |
FTO/ZnO/Ag-6 | 0.48 ± 0.15 | 0.71 ± 0.13 | 0.79 ± 0.06 | 43 ± 15 |
FTO/ZnO/Ag-8 | 0.63 ± 0.14 | 0.69 ± 0.13 | 0.84 ± 0.07 | 103 ± 58 |
