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Hydrochloric acid accelerated formation of planar CH3NH3PbI3 perovskite with high humidity tolerance
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhang, Taiyang Zhao, Yixin |
| Copyright Year | 2015 |
| Abstract | We demonstrate high humidity tolerant one-step and sequential deposition methods to fabricate high quality planar CH3NH3PbI3 perovskite films with the assistance of HCl. The addition of stoichiometric HCl into PbI2 precursor solution from 33 wt% hydrochloric acid leads to the formation of a novel HCl·PbI2 precursor film, which can be easily thermally decomposed back into PbI2. This novel intermediate planar HCl·PbI2 precursor film can be completely converted into a compact planar MAPbI3 film within only 10 s at room temperature via sequential deposition. In another novel one step method the precursor solution of PbI2 + MAI + HCl obtained by adding stoichiometric HCl into regular PbI2 + MAI precursor solution was used to fabricate a very smooth planar MAPbI3 film by just spin coating. Both the one step and sequential deposition methods can be used to fabricate high quality planar perovskite films in a hood under ambient conditions with up to 60% humidity level for high efficiency planar perovskite solar cells. |
| Starting Page | 19674 |
| Ending Page | 19678 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C5TA06172E |
| Volume Number | 3 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/c5/ta/c5ta06172e/c5ta06172e1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/C5TA06172E |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
