Issue 2, 2017

Color-stable water-dispersed cesium lead halide perovskite nanocrystals

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.

Graphical abstract: Color-stable water-dispersed cesium lead halide perovskite nanocrystals

Supplementary files

Article information

Article type
Paper
Submitted
14 Nov 2016
Accepted
22 Nov 2016
First published
24 Nov 2016
This article is Open Access
Creative Commons BY-NC license

Nanoscale, 2017,9, 631-636

Color-stable water-dispersed cesium lead halide perovskite nanocrystals

L. Gomez, C. de Weerd, J. L. Hueso and T. Gregorkiewicz, Nanoscale, 2017, 9, 631 DOI: 10.1039/C6NR08892A

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