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@ARTICLE{Hiller:633158,
author = {Hiller, Jonas L. and Thalwitzer, Robert and Bozkurt, Ata
and Ferreira, Matheus Gomes and Hodak, Richard and Strauß,
Fabian and Nadler, Elke and Hinsley, Gerard and Wang, Bihan
and Ngoi, Kuan Hoon and Rudzinski, Witold and Kneschaurek,
Ekaterina and Roseker, Wojciech and Sprung, Michael and
Lapkin, Dmitrii and Baranov, Dmitry and Schreiber, Frank and
Vartanyants, Ivan A. and Scheele, Marcus and Zaluzhnyy, Ivan
A.},
title = {{M}echanically {R}obust {S}upercrystals from
{A}ntisolvent-{I}nduced {A}ssembly of {P}erovskite
{N}anocrystals},
journal = {ACS nano},
volume = {19},
number = {28},
issn = {1936-0851},
address = {Washington, DC},
publisher = {Soc.},
reportid = {PUBDB-2025-02354},
pages = {26117},
year = {2025},
abstract = {Ordered arrays of nanocrystals, called supercrystals, have
attracted significant attention owing to the collective
quantum effects arising from the coupling between
neighboring nanocrystals. In particular, lead halide
perovskite nanocrystals are widely used because of the
combination of the optical properties and faceted cubic
shape, which enables the formation of highly ordered
supercrystals. The most frequently used method for the
fabrication of perovskite supercrystals is based on the
self-assembly of nanocrystals from solution via slow
evaporation of the solvent. However, the supercrystals
produced with this technique grow in random positions on the
substrate. Moreover, they are mechanically soft due to the
presence of organic ligands around the individual
nanocrystals. Therefore, such supercrystals cannot be easily
manipulated with microgrippers, which hinders their use in
applications. In this work, we synthesize mechanically
robust supercrystals built from cubic lead halide perovskite
nanocrystals by a two-layer phase diffusion self-assembly
with acetonitrile as the antisolvent. This method yields
highly faceted thick supercrystals, which are robust enough
to be picked up and relocated by microgrippers. We employed
X-ray nanodiffraction together with high-resolution scanning
electron microscopy and atomic force microscopy to reveal
the structure of CsPbBr3, CsPbBr2Cl, and CsPbCl3
supercrystals assembled using the two-layer phase diffusion
technique and explain their unusual mechanical robustness.
Our findings are crucial for further experiments and
applications in which supercrystals need to be placed in a
precise location, for example, between the electrodes in an
electro-optical modulator.},
cin = {DOOR ; HAS-User / FS-PETRA-S / FS-PS},
ddc = {540},
cid = {I:(DE-H253)HAS-User-20120731 /
I:(DE-H253)FS-PETRA-S-20210408 / I:(DE-H253)FS-PS-20131107},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
FS-Proposal: I-20230782 (I-20230782) / DFG project
G:(GEPRIS)546072194 - Erhöhung von struktureller Kohärenz
und optischem Koppeln in Superkristallen aus Nanopartikeln
(546072194) / DFG project G:(GEPRIS)426008387 -
Optoelektronik Synthetischer Mesokristalle (426008387) /
PROMETHEUS - Engineering of Superfluorescent Nanocrystal
Solids (101039683) / 05K22MG1 - Methodische Entwicklung
eines neuen Phasenkontrast-Tomographie Verfahrens mit
holographischer Bildrekonstruktion (Holo-Tomographie).
(BMBF-05K22MG1)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
G:(DE-H253)I-20230782 / G:(GEPRIS)546072194 /
G:(GEPRIS)426008387 / G:(EU-Grant)101039683 /
G:(DE-Ds200)BMBF-05K22MG1},
experiment = {EXP:(DE-H253)P-P10-20150101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40634268},
doi = {10.1021/acsnano.5c07289},
url = {https://bib-pubdb1.desy.de/record/633158},
}