On the effect of atomic layer deposited Al2O3 on the environmental degradation of hybrid perovskite probed by positron annihilation spectroscopy
| Autor: | Valerio Zardetto, Wilhelmus M. M. Kessels, H. Schut, Mariadriana Creatore, Amber Nusteling, Frideriki Naziris, Jimmy Melskens, Dibyashree Koushik, Stephan W. H. Eijt |
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| Přispěvatelé: | Plasma & Materials Processing, Interfaces in future energy technologies, Atomic scale processing, Processing of low-dimensional nanomaterials |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry 02 engineering and technology General Chemistry Crystal structure 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Positron annihilation spectroscopy X-ray photoelectron spectroscopy Chemical engineering Photovoltaics Materials Chemistry Molecule Grain boundary Thin film 0210 nano-technology Spectroscopy business |
| Zdroj: | Journal of Materials Chemistry C, 7(18), 5275-5284. Royal Society of Chemistry |
| ISSN: | 2050-7526 |
| Popis: | The degradation of hybrid perovskite films when exposed to the ambient air is a major challenge for the development of perovskite-based photovoltaics at large scale. At present, little is known about the environmental degradation of perovskite films associated with the development of structural defects or open volumes (such as, atomic vacancies, voids, crystallographic defects and grain boundary defects) in the lattice and about the depth dependence of the structural degradation. Therefore, in this work, we use Doppler broadening-positron annihilation spectroscopy (DB-PAS) depth-profiling to gain insight into the structural degradation of CH3NH3PbI3-xClx perovskite when exposed to ambient air. In parallel, we investigate the effect of ultrathin ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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