Abstract
Planar heterojunction perovskite solar cells were fabricated through a low temperature approach. We find that the device performance significantly depends on the external bias before and during measurements. By appropriate optimization of the bias conditions, we could achieve an 8-fold increase in the power conversion efficiency. The significant improvement in device performance might be caused by the ion motion in the perovskite under the external electric field.
| Original language | English |
|---|---|
| Pages (from-to) | 107-112 |
| Number of pages | 6 |
| Journal | Organic Electronics |
| Volume | 18 |
| DOIs | |
| State | Published - Mar 2015 |
| Externally published | Yes |
Keywords
- Electric double layers
- External bias
- Ion motion
- Perovskite solar cells