| A | Acceptor |
| BHJ | Bulk heterojunction |
| CT | Charge transfer |
| CV | Cyclic voltammetry |
| D | Donor |
| DFT | Density functional theory |
| EQE | External quantum efficiency |
| ESP | Electrostatic potential |
| FF | Fill factor |
| HOMO | Highest occupied molecular orbital |
| ITO | Indium tin oxide |
| LUMO | Lowest unoccupied molecular orbital |
| NFA | Non-fullerene acceptor |
| NMR | Nuclear magnetic resonance |
| NTO | Natural transition orbital |
| OSC | Organic solar cell |
| PCE | Power conversion efficiency |
| PCM | Polarizable continuum model |
| PYS | Photoemission yield spectroscopy |
| TD-DFT | Time-dependent density functional theory |
| TOSC | Ternary organic solar cell |
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