| Deposited films | Spin rate (rpm) | Thickness (nm) | Roughness (nm)b |
| PEDOT: PSS | 3000 | 40 | 1.20 |
| TAZSa | 1000 | 34 | 3.33 |
| 2000 | 28 | 2.75 | |
| 3000 | 16 | 2.00 | |
| 4000 | 5 | 1.90 |