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Quantitative Characterization of Functional Nanomaterials with vis/NIR Emission

  • The rational design of functional nanomaterials for optical applications in the material and life sciences requires optical-spectroscopic methods for the quantitative characterization of their signal-relevant optical properties. Additionally, methods for the simple and quantitative analysis of the surface chemistry are desired as the chemical nature and number of the surface groups and ligands can affect the optical features and controls the interaction of these nanomaterials with their environment. Here, we present quantitative photoluminescenvce studies of different types of vis/NIR-emissive nanomaterials like semiconductor quantum dots and upconversion nanocrystals will be presented and their relevance for the mechanistic understanding of nonradiative decay channels and the rational design of new nanomaterials will be underpinned. In this respect, also validation concepts for such measurements and absolute fluorometry will be introduced. In addition, the potential of opticalThe rational design of functional nanomaterials for optical applications in the material and life sciences requires optical-spectroscopic methods for the quantitative characterization of their signal-relevant optical properties. Additionally, methods for the simple and quantitative analysis of the surface chemistry are desired as the chemical nature and number of the surface groups and ligands can affect the optical features and controls the interaction of these nanomaterials with their environment. Here, we present quantitative photoluminescenvce studies of different types of vis/NIR-emissive nanomaterials like semiconductor quantum dots and upconversion nanocrystals will be presented and their relevance for the mechanistic understanding of nonradiative decay channels and the rational design of new nanomaterials will be underpinned. In this respect, also validation concepts for such measurements and absolute fluorometry will be introduced. In addition, the potential of optical spectroscopy for surface group and ligand analysis surface chemistry will be demonstrated exemplarily for semiconductor quantum dotszeige mehrzeige weniger

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Autor*innen:Ute Resch-GengerORCiD
Koautor*innen:Christian Würth, Michael Kaiser, Marko Moser, Nithiya Nirmalananthan-Budau, Thomas Behnke, Jutta Pauli, Florian Weigert
Dokumenttyp:Vortrag
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2017
DDC-Klassifikation:Naturwissenschaften und Mathematik / Chemie / Analytische Chemie
Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten
Freie Schlagwörter:Absolute fluoreometry; Assay; Fluorescence; Integrating sphare spectroscopy; NIR; Nanoparticle; Optical probe; Semiconductor; Surface group analysis; Thiol ligand; Upconversion
Veranstaltung:AK Prof. Voss
Veranstaltungsort:Uni Brunswick, Germany
Beginndatum der Veranstaltung:03.08.2017
Bemerkung:
Geburtsname von Nirmalananthan-Budau, Nithiya: Nirmalananthan, N. -  Birth name of Nirmalananthan-Budau, Nithiya: Nirmalananthan, N.
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:16.08.2017
Referierte Publikation:Nein
Eingeladener Vortrag:Nein
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