Issue 44, 2018

Initiation and future prospects of colloidal metal halide double-perovskite nanocrystals: Cs2AgBiX6 (X = Cl, Br, I)

Abstract

Lead halide perovskites are a sensational class of optoelectronic materials, but they suffer from the problems of lead toxicity and poor thermal stability of organic–inorganic hybrid systems. Various lead-free metal halide double-perovskite (DP) systems are being explored as potential lead-free perovskites for optoelectronics. In these DPs, Pb2+ are replaced by equal proportions of monovalent and trivalent metal ions. In early 2018, colloidal nanocrystals (NCs) of Cs2AgBiX6 (X = Cl, Br, I) DPs were reported and, in quick succession, multiple research teams have reported the synthesis, stabilization of unusual phases, optical properties, and photocatalytic applications of DP NCs. Here, we provide the first review of DP NCs. We first summarize the progress made in this research field, and then discuss the potential future directions of DP NCs compared with their bulk counterparts.

Graphical abstract: Initiation and future prospects of colloidal metal halide double-perovskite nanocrystals: Cs2AgBiX6 (X = Cl, Br, I)

Associated articles

Article information

Article type
Highlight
Submitted
26 6 2018
Accepted
02 8 2018
First published
02 8 2018

J. Mater. Chem. A, 2018,6, 21666-21675

Initiation and future prospects of colloidal metal halide double-perovskite nanocrystals: Cs2AgBiX6 (X = Cl, Br, I)

V. K. Ravi, N. Singhal and A. Nag, J. Mater. Chem. A, 2018, 6, 21666 DOI: 10.1039/C8TA06126B

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