Synthesis of Zwitterionic CsPbBr3 Nanocrystals with Controlled Anisotropy using Surface-Selective Ligand Pairs
Name
Advanced Materials - 2023 - Zhu - Synthesis of Zwitterionic CsPbBr3 Nanocrystals with Controlled Anisotropy using.pdf
Description
Published version
Size
3.82 MB
Format
Adobe PDF
Checksum (MD5)
9b526005bc7fc2807dc524ca3eff78ea
Author(s)
Zhu, Hua
Kick, Matthias
Ginterseder, Matthias
Krajewska, Chantalle J
Šverko, Tara
Li, Ruipeng
Lu, Yongli
Shih, Meng‐Chen
Van Voorhis, Troy
Bawendi, Moungi G
Date Issued
July 24, 2023
Journal
Advanced Materials
Publisher
Wiley
Citation
Zhu, Hua, Kick, Matthias, Ginterseder, Matthias, Krajewska, Chantalle J, Šverko, Tara et al. 2023. "Synthesis of Zwitterionic CsPbBr3 Nanocrystals with Controlled Anisotropy using Surface-Selective Ligand Pairs." Advanced Materials, 35 (39).
Version
Final published version
Abstract
Mechanistic studies of the morphology of lead halide perovskite nanocrystals (LHP‐NCs) are hampered by a lack of generalizable suitable synthetic strategies and ligand systems. Here, the synthesis of zwitterionic CsPbBr3 NCs is presented with controlled anisotropy using a proposed “surface‐selective ligand pairs” strategy. Such a strategy provides a platform to systematically study the binding affinity of capping ligand pairs and the resulting LHP morphologies. By using zwitterionic ligands (ZwL) with varying structures, majority ZwL‐capped LHP NCs with controlled morphology are obtained, including anisotropic nanoplatelets and nanorods, for the first time. Combining experiments with density functional theory calculations, factors that govern the ligand binding on the different surface facets of LHP‐NCs are revealed, including the steric bulkiness of the ligand, the number of binding sites, and the charge distance between binding moieties. This study provides guidance for the further exploration of anisotropic LHP‐NCs.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivatives
Persistent DSpace Link
DOI of Published Version
10.1002/adma.202304069
