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@ARTICLE{Kuhn:633166,
author = {Kuhn, Meike and Wenzel, Felix Alexander and Greve,
Christopher and Kreger, Klaus and Schwartzkopf, Matthias and
Schmidt, Hans-Werner and Grüninger, Helen and Herzig, Eva},
title = {{T}ailored {S}upramolecular {A}dditives to {C}ontrol the
{C}rystallization {P}rocess and {M}orphology of
${MAP}b{I}_3$},
journal = {Small},
volume = {21},
number = {9},
issn = {1613-6810},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {PUBDB-2025-02362},
pages = {2410230},
year = {2025},
note = {open access},
abstract = {Perovskite films feature unique optoelectronic properties,
rendering them promising for electronic devices. The
properties depend on the morphology on a broad range of
length scales from nanometers to millimeters, influenced by
a variety of factors. However, controlling the morphology is
challenging. A tailored supramolecular additive, N,
N’-bis(2-aminoethyl) terephthalamide is developed to
control the intermediate and perovskite crystallization of
methyl ammonium lead iodide (MAPbI3) and enhance the thermal
and moisture stability in the final film. Reversible
coordinative interactions of the carbonyl groups with Pb2+
ions via Lewis acid-base adduct and subsequent ion–ion
interactions of the peripheral ammonium groups with the
perovskite grain boundaries are combined which is stabilized
by a strong hydrogen bonding pattern formed between the
amide moieties of the additive molecules. Adding low amounts
of this additive to the precursor solution significantly
decelerates the structure formation and systematically
reduces the crystallite size. Slower growth of the
intermediate phases and the incorporation of the additive to
the grain boundary is observed with multiple time-resolved
techniques. Evidence for the formation of single-molecule
interlayers between the MAPbI3 crystals and the presence of
directed supramolecular interaction between additive
molecules is shown. Transferability of this approach to
other perovskites is anticipated, paving the way to improved
processing control and stability.},
cin = {DOOR ; HAS-User / FS-PET-D},
ddc = {620},
cid = {I:(DE-H253)HAS-User-20120731 /
I:(DE-H253)FS-PET-D-20190712},
pnm = {632 - Materials – Quantum, Complex and Functional
Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
FS-Proposal: I-20220646 (I-20220646) / DFG project
G:(GEPRIS)510654404 - Gezieltes Hochskalieren
lösungsbasierter Dünnfilmherstellung von
Halogen-Perowskiten, ermöglicht durch multimodale optische
in-situ Spektroskopie (HOLD-MOISS) (510654404) / SFB 1585
B03 - Kontrolle über Ionen- und Elektronentransport in
durch mesoporöse Matrizen räumlich eingeschränkten
Hybrid-Perowskiten (B03) (525371699)},
pid = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
G:(DE-H253)I-20220646 / G:(GEPRIS)510654404 /
G:(GEPRIS)525371699},
experiment = {EXP:(DE-H253)P-P03-20150101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:39910842},
doi = {10.1002/smll.202410230},
url = {https://bib-pubdb1.desy.de/record/633166},
}