Abstract
A general doping strategy, using a wide range of acids with different pKa values as additive, is demonstrated to enhance the conductivity of spiro-OMeTAD, the dominant hole transport material in perovskite solar cells (PSCs). Hysteresis-less planar PSCs with ~19% efficiency and better open-circuit voltage and fill factor is achieved with acid doped spiro-OMeTAD.
Original language | American English |
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Article number | 1601451 |
Number of pages | 8 |
Journal | Advanced Energy Materials |
Volume | 7 |
Issue number | 4 |
DOIs | |
State | Published - 2017 |
NREL Publication Number
- NREL/JA-5900-66721
Keywords
- acids
- doping
- hole transport layer
- perovskite solar cells