title: 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.
authors.affiliation: Institute of Physics, University of Amsterdam, Science Park 904, 1098 HX Amsterdam, The Netherlands. L.gomeznavascues@uva.nl.
authors.forename: Leyre
authors.initials: L
authors.lastname: Gomez
authors.affiliation: Institute of Physics, University of Amsterdam, Science Park 904, 1098 HX Amsterdam, The Netherlands. L.gomeznavascues@uva.nl.
authors.forename: Chris
authors.initials: C
authors.lastname: de Weerd
authors.affiliation: Institute of Nanoscience of Aragon (INA) and Department of Chemical Engineering and Environmental Technology, Edificio I+D+i, Campus Rio Ebro, 50018, Zaragoza, Spain and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029, Madrid, Spain.
authors.forename: Jose L
authors.initials: JL
authors.lastname: Hueso
authors.affiliation: Institute of Physics, University of Amsterdam, Science Park 904, 1098 HX Amsterdam, The Netherlands. L.gomeznavascues@uva.nl.
authors.forename: Tom
authors.initials: T
authors.lastname: Gregorkiewicz