Optimized organometal halide perovskite solar cell fabrication through control of nanoparticle crystal patterning
| Autor: | David G. Lidzey, M. Reinhardt, David Mohamad, Benjamin G. Freestone, Robert C. Masters, Cornelia Rodenburg, Sarah L. Canning |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Energy conversion efficiency Halide Perovskite solar cell Nanoparticle Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention Crystal chemistry.chemical_compound Chemical engineering chemistry law Solar cell Materials Chemistry Hydrogen iodide 0210 nano-technology Perovskite (structure) |
| Zdroj: | Journal of Materials Chemistry C. 5:2352-2359 |
| ISSN: | 2050-7534 2050-7526 |
| Popis: | The addition of hydrogen iodide to organometal halide perovskite precursor solution at 1% by volume leads to a significant enhancement in average power conversion efficiency (PCE) in inverted solar cell devices, increasing from 7.7% to 11.9% and 6.1% to 10.0% in spin-cast and spray-cast devices respectively. We directly attribute this improved device performance to increased thin-film surface coverage coupled with higher optical density. X-ray diffraction studies also reveal that the HI additive facilitates full conversion of the precursor material to the crystalline perovskite phase. From solution studies, we relate these changes in device performance to the presence and distribution of precursor aggregates that effectively pattern the formation of perovskite crystals during film formation. |
| Databáze: | OpenAIRE |
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