The other model antiferroelectric: PbHfO3 thin films from ALD precursors

Autor: Brendan Hanrahan, Cosme Milesi-Brault, Asher Leff, Alexis Payne, Shi Liu, Mael Guennou, Nicholas Strnad

Publikováno v: APL Materials, Vol 9, Iss 2, Pp 021108-021108-7 (2021)

Antiferroelectric PbHfO3 is grown from atomic layer deposition precursors lead bis(dimethylaminomethylpropanolate) and tetrakis dimethylamino hafnium with H2O and O3 oxidizers in thicknesses from 20 nm to 200 nm at a substrate temperature of 250 °C.

Externí odkaz: https://doaj.org/article/8140dc4cf82a46238bc77841ba2e83e4

Solution-processed BiFeO3 thin films with low leakage current

Autor: Andreja Benčan, Nicolas Godard, Alfredo Blázquez Martínez, Sebastjan Glinsek, Oana Condurache, Naveen Aruchamy, Cosme Milesi-Brault, Torsten Granzow

Publikováno v: Journal of the European Ceramic Society. 41:6449-6455

Bismuth ferrite (BiFeO3) is an attractive multiferroic material that shows strong ferroelectric and antiferromagnetic properties. Nevertheless, producing high-quality oriented BiFeO3 on technology-important platinized silicon substrates by low-cost s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e6368f92179264c2ff6ea35bf2b2f839
https://doi.org/10.1016/j.jeurceramsoc.2021.05.051

Archetypal Soft-Mode-Driven Antipolar Transition in Francisite Cu3Bi(SeO3)2O2Cl

Autor: Jorge Íñiguez, Hugo Aramberri, E. Constable, Mael Guennou, Virginie Simonet, Constance Toulouse, Luigi Paolasini, Alexei Bosak, Helmuth Berger, Sophie de Brion, Cosme Milesi-Brault

Publikováno v: Physical Review Letters. 124

Model materials are precious test cases for elementary theories and provide building blocks for the understanding of more complex cases. Here, we describe the lattice dynamics of the structural phase transition in francisite ${\mathrm{Cu}}_{3}\mathrm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45c033a716cc5317fdbd19df319fdf3e
https://doi.org/10.1103/physrevlett.124.097603

Exciton-Exciton Annihilation in Two-dimensional Halide Perovskites at Room Temperature

Autor: Jacky Even, Emmanuelle Deleporte, Damien Garrot, Cosme Milesi-Brault, Jean-Sébastien Lauret, Gaëlle Trippé-Allard, Hiba Diab, Géraud Delport, Ferdinand Lédée, Gabriel Chehade

Publikováno v: Journal of Physical Chemistry Letters
Journal of Physical Chemistry Letters, American Chemical Society, 2019, 10 (17), pp.5153-5159. ⟨10.1021/acs.jpclett.9b01595⟩
Journal of Physical Chemistry Letters, 2019, 10 (17), pp.5153-5159. ⟨10.1021/acs.jpclett.9b01595⟩

International audience; Recently, Ruddlesden–Popper 2D perovskite (RPP) solar cells and light-emitting diodes (LEDs) have shown promising efficiencies and improved stability in comparison to 3D halide perovskites. Here, the exciton recombination dy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb9a8596b0a5eaf4f9e88238e65edfdd
https://hal.archives-ouvertes.fr/hal-02266950

Micro-photoluminescence study of 2D-layered hybrid perovskite monocrystalline thin films. Correlation between the structural and optoelectronics properties

Autor: Géraud Delport, Ferdinand Lédée, Hiba Diab, Cosme Milesi Brault, Gaëlle Trippé-Allard, Jean‐sébastien Lauret, Emmanuelle Deleporte, Damien Garrot

Publikováno v: The 3rd International Conference on Physics of 2D Crystals (ICP2C3)
The 3rd International Conference on Physics of 2D Crystals (ICP2C3), May 2018, La Valletta, Malta
HAL

International audience; Over the past few years, organic-inorganic halide 3D perovskites (3D-HOP) were found to present remarkable optoelectronic properties. A great attention has been paid to perovskites thin films, as an ideal building block for PV

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::1012c9afd4fd99a8eb36fef73fb05744
https://hal.archives-ouvertes.fr/hal-01881446