Premium
Dispersion of InPZnS/ZnSe/ZnS multishell quantum dots (QDs) in water: extension to QDs with different core sizes and identical shell thickness
Author(s) -
Heyne Benjamin,
Geßner André,
Wedel Armin,
Taubert Andreas
Publication year - 2021
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202000469
Subject(s) - quantum dot , dispersion (optics) , quantum yield , photoluminescence , shell (structure) , core (optical fiber) , aqueous solution , yield (engineering) , nanomaterials , materials science , nanotechnology , optoelectronics , chemistry , fluorescence , optics , physics , composite material
We have previously shown (Nanomaterials, 2020, 10 (9), 1858) that InPZnS/ZnSe/ZnS multishell quantum dots (QDs) with a variety of shell thicknesses can be dispersed in water using a ligand exchange reaction with mercaptocarboxylic acids. Here, we demonstrate that the concept can further be extended to a larger variety of QD core sizes while keeping the shell thickness constant. The photoluminescence quantum yield of the QDs in the aqueous phase depends on the QD size and the QDs only show a slight red‐shift upon dispersion in water. This provides access to a larger group of particles with different emission colors, which is interesting for application in e. g. biological or medical diagnostics.