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Organosilicon-Based Ligand Design for High-Performance Perovskite Nanocrystal Films for Color Conversion and X-ray Imaging

Chen, Junchi ORCID iD icon 1; Jiang, Guocan; Hamann, Elias ORCID iD icon 2; Mescher, Henning Ivar 1; Jin, Qihao ORCID iD icon 1; Allegro, Isabel ORCID iD icon 1; Brenner, Philipp; Li, Zhengquan; Gaponik, Nikolai; Eychmüller, Alexander; Lemmer, Uli 1
1 Lichttechnisches Institut (LTI), Karlsruher Institut für Technologie (KIT)
2 Institut für Photonenforschung und Synchrotronstrahlung (IPS), Karlsruher Institut für Technologie (KIT)

Abstract:

Perovskite nanocrystals (PNCs) bear a huge potential for widespread applications, such as color conversion, X-ray scintillators, and active laser media. However, the poor intrinsic stability and high susceptibility to environmental stimuli including moisture and oxygen have become bottlenecks of PNC materials for commercialization. Appropriate barrier material design can efficiently improve the stability of the PNCs. Particularly, the strategy for packaging PNCs in organosilicon matrixes can integrate the advantages of inorganic-oxide-based and polymer-based encapsulation routes. However, the inert long-carbon-chain ligands (e.g., oleic acid, oleylamine) used in the current ligand systems for silicon-based encapsulation are detrimental to the cross-linking of the organosilicon matrix, resulting in performance deficiencies in the nanocrystal films, such as low transparency and large surface roughness. Herein, we propose a dual-organosilicon ligand system consisting of (3-aminopropyl)triethoxysilane (APTES) and (3-aminopropyl)triethoxysilane with pentanedioic anhydride (APTES-PA), to replace the inert long-carbon-chain ligands for improving the performance of organosilicon-coated PNC films. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000169982
Veröffentlicht am 22.04.2024
Originalveröffentlichung
DOI: 10.1021/acsnano.3c11991
Scopus
Zitationen: 5
Web of Science
Zitationen: 4
Dimensions
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Photonenforschung und Synchrotronstrahlung (IPS)
Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 09.04.2024
Sprache Englisch
Identifikator ISSN: 1936-0851, 1936-086X
KITopen-ID: 1000169982
Weitere HGF-Programme 56.13.11 (POF IV, LK 01) Building Blocks of Life: Structure and Function
Erschienen in ACS Nano
Verlag American Chemical Society (ACS)
Band 18
Heft 14
Seiten 10054–10062
Projektinformation EXC 2082; 3DMM2O (DFG, DFG EXSTRAT, EXC 2082/1)
Vorab online veröffentlicht am 25.03.2024
Schlagwörter perovskite nanocrystals, ligand design, organosilicon ligands, film formation, reduced scattering, scintillator, X-ray imaging
Nachgewiesen in Dimensions
Web of Science
Scopus
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