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Achieving long-term stable perovskite solar cells via ion neutralization
| Content Provider | Semantic Scholar |
|---|---|
| Author | Back, Hyungcheol Kim, Geunjin Kim, Junghwan Kong, Jaemin Kim, Tae Kyun Kang, Hongkyu Kim, Heejoo Lee, Jinho Lee, Seongyu Lee, Kwanghee |
| Copyright Year | 2016 |
| Abstract | Despite recent reports of high power conversion efficiency (PCE) values of over 20%, the instability of perovskite solar cells (PSCs) has been considered the most serious obstacle toward their commercialization. By rigorously exploring the self-degradation process of planar-type PSCs using typical metal electrodes (Ag or Al), we found that the corrosion of the metal electrodes by inherent ionic defects in the perovskite layers is a major origin of intrinsic device degradation even under inert conditions. In this work, we have developed a new concept of a chemical inhibition in PSCs using amine-mediated metal oxide systems and succeeded in chemically neutralizing mobile ionic defects through mutual ionic interaction. As a consequence, we realized planar-type PSCs with long-term stability that maintain nearly 80% of their initial PCEs even after 1 year (9000 h) of storage under nitrogen and 80% of their initial PCEs after 200 h in ambient conditions without any encapsulation. |
| Starting Page | 1258 |
| Ending Page | 1263 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C6EE00612D |
| Volume Number | 9 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c6/ee/c6ee00612d/c6ee00612d1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/C6EE00612D |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
