117209 20230519145552.0 doi 10.1002/anie.202113451 sideral 126751 ART-2021-126751 eng Cevallos-Toledo R.B. Ruddlesden–Popper hybrid lead bromide perovskite nanosheets of phase pure n=2: Stabilized colloids stored in the solid state 2021 Access copy available to the general public Unrestricted Ruddlesden-Popper lead halide perovskite (RP-LHP) nano-nanostructures can be regarded as self-assembled quantum wells or superlattices of 3D perovskites with an intrinsic quantum well thickness of a single or a few (n=2-4) lead halide layers; the quantum wells are separated by organic layers. They can be scaled down to a single quantum well dimension. Here, the preparation of highly (photo)chemical and colloidal stable hybrid LHP nanosheets (NSs) of ca. 7.4 µm lateral size and 2.5 nm quantum well height (thereby presenting a deep blue emission at ca. 440 nm), is reported for the first time. The NSs are close-lying and they even interconnect when deposited on a substrate. Their synthesis is based on the use of the p-toluenesulfonic acid/dodecylamine (pTS/DDA) ligand pair and their (photo)chemical stability and photoluminescence is enhanced by adding EuBr2 nanodots (EuNDs). Strikingly, they can be preserved as a solid and stored for at least one year. The blue emissive colloid can be recovered from the solid as needed by simply dispersing the powder in toluene and then using it to prepare solid films, making them very promising candidates for manufacturing devices. © 2021 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH. info:eu-repo/grantAgreement/ES/AEI/PID2020-13229RB-100 info:eu-repo/grantAgreement/ES/DGA/E13-20R info:eu-repo/grantAgreement/EUR/ERC-2018-StG 804110-2D-PnitoChem info:eu-repo/grantAgreement/ES/FEDER/PID2019-111742GA-100 info:eu-repo/grantAgreement/ES/MICINN/CTQ2017-82711-P info:eu-repo/grantAgreement/ES/MICINN/FPU17-05564 info:eu-repo/grantAgreement/ES/MINECO-AEI-FEDER/PID2019-104739GB-I00-AEI-10.13039-501100011033 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 16.823 2021 CHEMISTRY, MULTIDISCIPLINARY 15 / 180 = 0.083 2021 Q1 T1 5.126 2021 Chemistry (miscellaneous) 2021 Q1 Catalysis 2021 Q1 23.9 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Rosa-Pardo I. Arenal, R. (orcid)0000-0002-2071-9093 Oestreicher V. Fickert M. Abellán G. Galian R.E. Pérez-Prieto J. 60, 52 (2021), 27312-27317 Angew. Chem. (Int. ed.) ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 1433-7851 1621506 http://zaguan.unizar.es/record/117209/files/texto_completo.pdf Versión publicada 3251325 http://zaguan.unizar.es/record/117209/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:117209 articulos driver 2023-05-18-15:51:45 ARTICLE