Reconditioning perovskite films in vapor environments through repeated cation doping
| Autor: | Toemsak Srikhirin, Jitprabhat Ponchai, Kusuma Pinsuwan, Chirapa Boonthum, Pongsakorn Kanjanaboos |
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| Rok vydání: | 2018 |
| Předmět: |
Fabrication
Materials science Doping General Engineering General Physics and Astronomy Recrystallization (metallurgy) 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Ion law.invention Crystallinity Chemical engineering law Crystallization 0210 nano-technology Perovskite (structure) Electronic properties |
| Zdroj: | Applied Physics Express. 11:065503 |
| ISSN: | 1882-0786 1882-0778 |
| DOI: | 10.7567/apex.11.065503 |
| Popis: | Perovskites have attracted considerable attention for application as high-efficiency photovoltaic devices owing to their low-cost and low-temperature fabrication. A good surface and high crystallinity are necessary for high-performance devices. We examine the negative effects of chemical ambiences on the perovskite crystal formation and morphology. The repeated cation doping (RCD) technique was developed to remedy these issues by gradually dropping methylammonium ions on top of about-to-form perovskite surfaces to cause recrystallization. RCD promotes pinhole-free, compact, and polygonal-like surfaces under various vapor conditions. Furthermore, it enhances the electronic properties and crystallization. The benefits of RCD extend beyond perovskites under vapor ambiences, as it can improve regular and wasted perovskites. |
| Databáze: | OpenAIRE |
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