| AA | Acetic acid |
| Ac | Acetone |
| CS | Contact-separation |
| DMSO | Dimethylsulphoxide |
| FA | Formic acid |
| FT | Freestanding triboelectric-layer |
| LS | Lateral sliding |
| PA | Polyamide 6 |
| PDMS | Polydimethylsiloxane |
| PVDF | Polyvinylidene fluoride |
| SE | Single-electrode |
| SEM | Scanning electron microscopy |
| SCD | Surface charge density |
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