People | Locations | Statistics |
---|---|---|
Naji, M. |
| |
Motta, Antonella |
| |
Aletan, Dirar |
| |
Mohamed, Tarek |
| |
Ertürk, Emre |
| |
Taccardi, Nicola |
| |
Kononenko, Denys |
| |
Petrov, R. H. | Madrid |
|
Alshaaer, Mazen | Brussels |
|
Bih, L. |
| |
Casati, R. |
| |
Muller, Hermance |
| |
Kočí, Jan | Prague |
|
Šuljagić, Marija |
| |
Kalteremidou, Kalliopi-Artemi | Brussels |
|
Azam, Siraj |
| |
Ospanova, Alyiya |
| |
Blanpain, Bart |
| |
Ali, M. A. |
| |
Popa, V. |
| |
Rančić, M. |
| |
Ollier, Nadège |
| |
Azevedo, Nuno Monteiro |
| |
Landes, Michael |
| |
Rignanese, Gian-Marco |
|
Dutton, S. E.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2024Mechanochemically-induced glass formation from two-dimensional hybrid organic–inorganic perovskitescitations
- 2023Glass Formation in Hybrid Organic‐Inorganic Perovskitescitations
- 2021Impact of Orientational Glass Formation and Local Strain on Photo-Induced Halide Segregation in Hybrid Metal-Halide Perovskites
- 2021Valence bond glass state in the 4d1 fcc antiferromagnet Ba2LuMoO6
- 2019Strain relaxation behaviour of vortices in a multiferroic superconductor
- 2019Ferroelasticity, anelasticity and magnetoelastic relaxation in Co-doped iron pnictide: Ba(Fe0.957Co0.043)₂As₂
- 2019Ferroelasticity, anelasticity and magnetoelastic relaxation in Co-doped iron pnictide: Ba(Fe0.957Co0.043)2As2citations
- 2017Defect-Assisted Photoinduced Halide Segregation in Mixed-Halide Perovskite Thin Filmscitations
- 2017Elastic and anelastic relaxation behaviour of perovskite multiferroics II:PbZr 0.53 Ti 0.47 O 3 (PZT)–PbFe 0.5 Ta 0.5 O 3 (PFT)citations
- 2017High Open-Circuit Voltages in Tin-Rich Low-Bandgap Perovskite-Based Planar Heterojunction Photovoltaicscitations
- 2016Elastic and magnetoelastic relaxation behaviour of multiferroic (ferromagnetic + ferroelectric + ferroelastic) Pb(Fe0.5Nb0.5)O3 perovskitecitations
- 2016Synthesis and Optical Properties of Lead-Free Cesium Tin Halide Perovskite Nanocrystalscitations
- 2016Tunable Near-Infrared Luminescence in Tin Halide Perovskite Devicescitations
- 2016Elastic and anelastic relaxation behaviour of perovskite multiferroics II : PbZr0.53Ti0.47O3 (PZT)–PbFe0.5Ta0.5O3 (PFT)citations
- 2016Elastic and anelastic relaxation behaviour of perovskite multiferroics II: PbZr0.53Ti0.47O3 (PZT)–PbFe0.5Ta0.5O3 (PFT)citations
- 2016Elastic and anelastic relaxation behaviour of perovskite multiferroics I: PbZr0.53Ti0.47O3(PZT)-PbFe0.5Nb0.5O3(PNF)citations
- 2015Elastic and magnetoelastic relaxation behaviour of multiferroic (ferromagnetic + ferroelectric + ferroelastic) Pb(Fe 0.5 Nb 0.5 )O 3 perovskitecitations
- 2015Local Versus Long-Range Diffusion Effects of Photoexcited States on Radiative Recombination in Organic–Inorganic Lead Halide Perovskitescitations
- 2015Elastic and magnetoelastic relaxation behaviour of multiferroic (ferromagnetic + ferroelectric + ferroelastic) Pb(Fe0.5Nb0.5)O3 perovskitecitations
- 2015Blue-Green Color Tunable Solution Processable Organolead Chloride-Bromide Mixed Halide Perovskites for Optoelectronic Applicationscitations
- 2014Preparation of single-phase films of CH<inf>3</inf>NH<inf>3</inf>Pb(I <inf>1- x</inf>Br<inf>x</inf>)<inf>3</inf> with sharp optical band edgescitations
Places of action
Organizations | Location | People |
---|
article
Impact of Orientational Glass Formation and Local Strain on Photo-Induced Halide Segregation in Hybrid Metal-Halide Perovskites
Abstract
Bandgap tuning of hybrid metal-halide perovskites by halide substitution holds promise for tailored light absorption in tandem solar cells and emission in LEDs. However, the impact of halide substitution on the crystal structure and the fundamental mechanism of photo-induced halide segregation remain open questions. Here, using a combination of temperature-dependent X-ray diffraction and calorimetry measurements, we report the emergence of a disorder- and frustration-driven orientational glass for a wide range of compositions in CH3NH3Pb(ClxBr1-x)3. Using temperature-dependent photoluminescence measurements, we find a correlation between halide segregation under illumination and local strains from the orientational glass. We observe no glassy behaviour in CsPb(ClxBr1-x)3, highlighting the importance of A-site cation for the structure and optoelectronic properties. Using first-principles calculations, we identify the local preferential alignment of the organic cations as the glass formation mechanism. Our findings rationalise the superior photostability of mixed-cation metal-halide perovskites and provide guidelines for further stabilisation strategies.