Abstract
Efficient lead (Pb)-free inverted planar formamidinium tin triiodide (FASnI3) perovskite solar cells (PVSCs) are demonstrated. Our FASnI3 PVSCs achieved average power conversion efficiencies (PCEs) of 5.41% +/- 0.46% and a maximum PCE of 6.22% under forward voltage scan. The PVSCs exhibit small photocurrent-voltage hysteresis and high reproducibility. The champion cell showed a steady-state efficiency of almost equal to 6.00% for over 100 s.
Original language | American English |
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Pages (from-to) | 9333-9340 |
Number of pages | 8 |
Journal | Advanced Materials |
Volume | 28 |
Issue number | 42 |
DOIs | |
State | Published - 2016 |
NREL Publication Number
- NREL/JA-5K00-67095
Keywords
- lead-free, perovskite solar cells
- pinhole-free
- SnFadditives
- uniform perovskites