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Enhanced charge collection with passivation of the tin oxide layer in planar perovskite solar cells
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lee, Yonghui Paek, Sanghyun Cho, Kyung Taek Oveisi, Emad Gao, Peng Lee, Se Hyung Park, Jin-Seong Zhang, Yuansai Humphry-Baker, Robin A. Asiri, Abdullah M. Nazeeruddin, Mohammad Khaja |
| Copyright Year | 2017 |
| Abstract | Tin oxide is an excellent candidate to replace mesoporous TiO2 electron transport layers (ETLs) in perovskite solar cells. Here, we introduced a SnO2 layer by a low-temperature solution process, and investigated its morphology, opto-physical and electrical properties affecting the device performance. We reveal that low-temperature processed SnO2 is self-passivating in nature, which leads to a high efficiency. To further enhance the blocking effect, we combined a compact TiO2 underlayer with the SnO2 contact layer, and found that the bi-layered ETL is superior compared to single layers. The best device shows photovoltaic values in a planar structure with a short-circuit current density (Jsc) of 22.58 mA cm−2, an open-circuit voltage (Voc) of 1.13 V, a fill factor (FF) of 0.78, and a power conversion efficiency (PCE) of 19.80% under 1 sunlight illumination. |
| Starting Page | 12729 |
| Ending Page | 12734 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/c7ta04128d |
| Volume Number | 5 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c7/ta/c7ta04128d/c7ta04128d1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/c7ta04128d |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
