| 4-PP | Four Point Probe | 
| AFM | Atomic Force Microscopy | 
| a-Si:H | Hydrogenated Amorphous Silicon | 
| AZO | Aluminum doped Zinc Oxide | 
| c-Si | Crystalline Silicon | 
| DC | Direct Current | 
| FTO | Fluorine doped-Tin oxide | 
| ITO | Indium Tin Oxide | 
| PV | Photovoltaic | 
| RF | Radio Frequency | 
| SCCM | Standard Cubic Centimeters per Minute (flow unit) | 
| SLG | Sodaline Glass | 
| SnO2 | Tin Oxide | 
| TCOs | Transparent Conducting Oxides | 
| VASE | Variable Angle Spectroscopic Ellipsometry | 
| XRD | X-ray Diffraction | 
| ZnO | Zinc Oxide |