z-logo
open-access-imgOpen Access
Highly Tunable Emission by Halide Engineering in Lead-Free Perovskite-Derivative Nanocrystals: The Cs2SnX6 (X = Cl, Br, Br/I, I) System
Author(s) -
Alessandro Veronese,
M. Patrini,
Daniele Bajoni,
Carlo Ciarrocchi,
Paolo Quadrelli,
Lorenzo Malavasi
Publication year - 2020
Publication title -
frontiers in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.027
H-Index - 52
ISSN - 2296-2646
DOI - 10.3389/fchem.2020.00035
Subject(s) - halide , perovskite (structure) , nanocrystal , derivative (finance) , lead (geology) , materials science , crystal engineering , chemistry , inorganic chemistry , chemical engineering , photochemistry , nanotechnology , crystallography , crystal structure , engineering , supramolecular chemistry , geomorphology , geology , financial economics , economics
Nanocrystals of Cs 2 SnX 6 (X = Cl, Br, Br 0.5 I 0.5 , and I) have been prepared by a simple, optimized, hot-injection method, reporting for the first time the synthesis of Cs 2 SnCl 6 , Cs 2 SnBr 6 , and mixed Cs 2 Sn(I 0.5 Br 0.5 ) 6 nanocrystalline samples. They all show a cubic crystal structure with a linear scaling of lattice parameter by changing the halide size. The prepared nanocrystals have spherical shape with average size from 3 to 6 nm depending on the nature of the halide and span an emission range from 444 nm (Cs 2 SnCl 6 ) to 790 nm (Cs 2 SnI 6 ) with a further modulation provided by mixed Br/I systems.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here
Accelerating Research

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom