OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Synthesis and characterization of Cs2Pb1-xBixCl2I2 (0 ≤ x ≤ 0.15) derivative perovskite

Breniaux, Edouard and Marin-Bernardez, Edelmy J. and Gallet, Emilie and Dufour, Pascal and Tenailleau, Christophe Synthesis and characterization of Cs2Pb1-xBixCl2I2 (0 ≤ x ≤ 0.15) derivative perovskite. (2020) Materials Chemistry and Physics, 247. 122870. ISSN 0254-0584

[img]
Preview
(Document in English)

PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1MB

Official URL: https://doi.org/10.1016/j.matchemphys.2020.122870

Abstract

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'Œ but 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.

Item Type:Article
HAL Id:hal-03033007
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Statistics:download
Deposited On:12 Nov 2020 10:14

Repository Staff Only: item control page