High-Speed Vapor Transport Deposition of Perovskite Thin Films
| Autor: | Nicole Moody, Ella Louise Wassweiler, Anurag Panda, Michel Nasilowski, Klavs F. Jensen, Anna Osherov, Vladimir Bulovic, Richard Swartwout, Maximilian T. Hoerantner, Aidan E. Driscoll, Haomiao Zhang, Moungi G. Bawendi |
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| Přispěvatelé: | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology. Department of Chemical Engineering, Massachusetts Institute of Technology. Department of Chemistry, Massachusetts Institute of Technology. Research Laboratory of Electronics, Massachusetts Institute of Technology. Department of Physics |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science business.industry Energy conversion efficiency vapor deposition fluid dynamics 02 engineering and technology Chemical vapor deposition 021001 nanoscience & nanotechnology 7. Clean energy 01 natural sciences manufacturing thin-film Chemical engineering Photovoltaics solar cells 0103 physical sciences Deposition (phase transition) General Materials Science Thin film 0210 nano-technology business perovskite Research Article Perovskite (structure) |
| Zdroj: | ACS ACS Applied Materials & Interfaces |
| Popis: | Intensive research of hybrid metal-halide perovskite materials for use as photoactive materials has resulted in an unmatched increase in the power conversion efficiency of perovskite photovoltaics (PVs) over the last couple of years. Now that lab-fabricated perovskite devices rival the efficiency of silicon PVs, the next challenge of scalable mass manufacturing of large perovskite PV panels remains to be solved. For that purpose, it is still unclear which manufacturing method will provide the lowest processing cost and highest quality solar cells. Vapor deposition has been proven to work well for perovskites as a controllable and repeatable thin-film deposition technique but with processing speeds currently too slow to adequately lower the production costs. Addressing this challenge, in the present work, we demonstrate a high-speed vapor transport processing technique in a custom-built reactor that produces high-quality perovskite films with unprecedented deposition speed exceeding 1 nm/s, over 10× faster than previous vapor deposition demonstrations. We show that the semiconducting perovskite films produced with this method have excellent crystallinity and optoelectronic properties with 10 ns charge carrier lifetime, enabling us to fabricate the first photovoltaic devices made by perovskite vapor transport deposition. Our experiments are guided by computational fluid dynamics simulations that also predict that this technique could lead to deposition rates on the order of micrometers per second. This, in turn, could enable cost-effective scalable manufacturing of the perovskite-based solar technologies. Keywords: solar cells; perovskite; thin-film; vapor deposition; manufacturing; fluid dynamics National Science Foundation (U.S.) (Award 1541959) National Science Foundation (U.S.) (Grant 1605406) |
| Databáze: | OpenAIRE |
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