دورية أكاديمية

Growth and Self-Assembly of CsPbBr 3 Nanocrystals in the TOPO/PbBr 2 Synthesis as Seen with X-ray Scattering.

التفاصيل البيبلوغرافية
العنوان: Growth and Self-Assembly of CsPbBr 3 Nanocrystals in the TOPO/PbBr 2 Synthesis as Seen with X-ray Scattering.
المؤلفون: Montanarella F; Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093Zürich, Switzerland.; Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600Dübendorf, Switzerland., Akkerman QA; Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093Zürich, Switzerland.; Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600Dübendorf, Switzerland., Bonatz D; Institute of Physical Chemistry, University of Hamburg, 20146Hamburg, Germany., van der Sluijs MM; Debye Institute for Nanomaterials Science, Utrecht University, 3584 CCUtrecht, The Netherlands., van der Bok JC; Debye Institute for Nanomaterials Science, Utrecht University, 3584 CCUtrecht, The Netherlands., Prins PT; Debye Institute for Nanomaterials Science, Utrecht University, 3584 CCUtrecht, The Netherlands., Aebli M; Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093Zürich, Switzerland.; Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600Dübendorf, Switzerland., Mews A; Institute of Physical Chemistry, University of Hamburg, 20146Hamburg, Germany., Vanmaekelbergh D; Debye Institute for Nanomaterials Science, Utrecht University, 3584 CCUtrecht, The Netherlands., Kovalenko MV; Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, CH-8093Zürich, Switzerland.; Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600Dübendorf, Switzerland.
المصدر: Nano letters [Nano Lett] 2023 Jan 25; Vol. 23 (2), pp. 667-676. Date of Electronic Publication: 2023 Jan 06.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: American Chemical Society Country of Publication: United States NLM ID: 101088070 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1530-6992 (Electronic) Linking ISSN: 15306984 NLM ISO Abbreviation: Nano Lett Subsets: PubMed not MEDLINE; MEDLINE
أسماء مطبوعة: Original Publication: Washington, DC : American Chemical Society, c2001-
مستخلص: Despite broad interest in colloidal lead halide perovskite nanocrystals (LHP NCs), their intrinsic fast growth has prevented controlled synthesis of small, monodisperse crystals and insights into the reaction mechanism. Recently, a much slower synthesis of LHP NCs with extreme size control has been reported, based on diluted TOPO/PbBr 2 precursors and a diisooctylphosphinate capping ligand. We report new insights into the nucleation, growth, and self-assembly in this reaction, obtained by in situ synchrotron-based small-angle X-ray scattering and optical absorption spectroscopy. We show that dispersed 3 nm Cs[PbBr 3 ] agglomerates are the key intermediate species: first, they slowly nucleate into crystals, and then they release Cs[PbBr 3 ] monomers for further growth of the crystals. We show the merits of a low Cs[PbBr 3 ] monomer concentration for the reaction based on oleate ligands. We also examine the spontaneous superlattice formation mechanism occurring when the growing nanocrystals in the solvent reach a critical size of 11.6 nm.
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فهرسة مساهمة: Keywords: X-ray scattering; growth; in situ; lead halides; nanocrystals; perovskites; quantum dots; self-assembly
تواريخ الأحداث: Date Created: 20230106 Date Completed: 20230125 Latest Revision: 20230202
رمز التحديث: 20240829
مُعرف محوري في PubMed: PMC9881167
DOI: 10.1021/acs.nanolett.2c04532
PMID: 36607192
قاعدة البيانات: MEDLINE
الوصف
تدمد:1530-6992
DOI:10.1021/acs.nanolett.2c04532