4D-STEM in an FIB-SEM: A Proper Tool to Characterize Perovskite Single-Photon Emitters and Solar Cells
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F25%3APU156325" target="_blank" >RIV/00216305:26620/25:PU156325 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acs.jpcc.4c08042" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.jpcc.4c08042</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpcc.4c08042" target="_blank" >10.1021/acs.jpcc.4c08042</a>
Alternative languages
Result language
angličtina
Original language name
4D-STEM in an FIB-SEM: A Proper Tool to Characterize Perovskite Single-Photon Emitters and Solar Cells
Original language description
Four-dimensional scanning transmission electron microscopy (4D-STEM) is a characterization technique that allows high-resolution imaging of thin samples while providing structural and crystallographic information. We have developed a 4D-STEM solution for scanning electron microscopes, enabling lamella fabrication and analysis without exposing the lamella to air. This technique has been used to analyze emerging materials, including low-dimensional lead halide perovskites and perovskite solar cells. We resolved individual CsPbBr3 nanocrystals, determined their lattice constant, and mapped their crystallographic orientation, locating well-ordered superlattice ensembles for single-photon emission. In perovskite solar cells, we observed a nondegenerate tetragonal MAPbI3 photoactive layer and documented the amorphization and subsequent degradation of the MA3Bi2I9 photoactive layer when exposed to air. Our findings facilitate the identification and characterization of lead halide perovskite nanocrystal ensembles and perovskite photoactive layers, thereby reducing the time required for these processes. This efficiency is generally valuable for large-scale production and quality control of materials manufactured on an industrial scale.
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
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
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
Journal of Physical Chemistry C (web)
ISSN
1932-7447
e-ISSN
1932-7455
Volume of the periodical
129
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
3905-3912
UT code for WoS article
001415250000001
EID of the result in the Scopus database
2-s2.0-85217114816