Elastic deformation suppresses ion demixing in mixed-halide perovskites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10504954" target="_blank" >RIV/00216208:11320/25:10504954 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21230/25:00389170 RIV/00216224:14310/25:00143351
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=t7ovRXYx9y" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=t7ovRXYx9y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matdes.2025.114850" target="_blank" >10.1016/j.matdes.2025.114850</a>
Alternative languages
Result language
angličtina
Original language name
Elastic deformation suppresses ion demixing in mixed-halide perovskites
Original language description
We simulated the kinetics of ion demixing in mixed-halide perovskites using phenomenological Cahn-Hilliard equation. In the model we considered the chemical and the elastic parts of Helmholtz free energy of the perovskite lattice, as well as the effect of free carriers generated by sample illumination. If the demixing process is accompanied by local elastic deformation caused by the dependence of the lattice parameter on the local chemical composition, the elastic contribution to the free energy is larger than the other two parts so that elastic deformation effectively suppresses the ion segregation. The demixing can take place if the internal stresses are relieved by surface elastic relaxation, or if the deformation of the lattice is plastic like around structural defects or at grain boundaries.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
<a href="/en/project/GA23-06543S" target="_blank" >GA23-06543S: Structural changes induced by light soaking in mixed-halide perovskites</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials and Design
ISSN
0264-1275
e-ISSN
1873-4197
Volume of the periodical
259
Issue of the periodical within the volume
listopad
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
114850
UT code for WoS article
001601382000011
EID of the result in the Scopus database
2-s2.0-105020571468