Color-stable water-dispersed cesium lead halide perovskite nanocrystals

Open Access
Authors
Publication date 2017
Journal Nanoscale
Volume | Issue number 9 | 2
Pages (from-to) 631-636
Organisations
  • Faculty of Science (FNWI)
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Van der Waals-Zeeman Institute (WZI)
  • Faculty of Science (FNWI) - Institute of Physics (IoP)
Abstract
Cesium lead halide perovskite nanocrystals are being lately explored for optoelectronic applications due to their emission tunability, high photoluminescence quantum yields, and narrow emission bands.
Nevertheless, their incompatibility with polar solvents and composition homogenization driven by a fast anion-exchange are still important drawbacks to overcome. Herein we report on a successful encapsulation of colloidal perovskite nanocrystals within solid–lipid structures mainly consisting of stearic acid. The product is water-stable for a period longer than 2 months and anion-exchange is fully arrested when mixing nanocrystals of different halide compositions. This strategy boosts the potential applications of all-inorganic
perovskite nanocrystals for ink-printing.
Document type Article
Language English
Published at https://doi.org/10.1039/C6NR08892A
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Encapsulation_Nanoscale 2017 (Final published version)
Supplementary materials
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