Synthesis and characterization of Cs2Pb1-xBixCl2I2 (0 ≤ x ≤ 0.15) derivative perovskite
| Autor: | Edelmy J. Marin-Bernardez, Pascal Dufour, Christophe Tenailleau, Edouard Breniaux, Emilie Gallet |
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| Přispěvatelé: | Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Diffraction
Materials science Halide perovskite Matériaux chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Bismuth chemistry.chemical_compound Phase (matter) General Materials Science Perovskite (structure) Doping [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Characterization (materials science) Photovoltaics Crystallography 2D ruddlesden-popper type chemistry Mechanosynthesis 0210 nano-technology Derivative (chemistry) |
| Zdroj: | Materials Chemistry and Physics Materials Chemistry and Physics, Elsevier, 2020, 247, pp.122870. ⟨10.1016/j.matchemphys.2020.122870⟩ |
| ISSN: | 0254-0584 |
| DOI: | 10.1016/j.matchemphys.2020.122870⟩ |
| Popis: | International audience; Mechanosynthesis was used to obtain pure crystalline powders of a 2D Ruddlesden-Popper type Cs2(Pb1.xBix) Cbl2 phase, with O ???? x :$ 0.15. These newly discovered compounds present interesting physical properties that may make them suitable for electronic devices, including LEDs and photovoltaics. Detailed structural analysis based on X-ray diffraction (XRD) data shows that lead substitution by bismuth reduces the unit cell parameters. A significant color change of the material has been observed with a clear red-shift related to the Bi doping content. The introduction of bismuth into the structure also induces strains as evidenced by XRD peak enlargemen'Πbut the material can be pure up to x = 15 mol.%. A first ageing study shows that these strains seem to be released with time and that Cs2PbClilz and 5 mol.% Bi-doped Cs2PbClilz materials remain pure after a month in air. |
| Databáze: | OpenAIRE |
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