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Polymer Zwitterions for Stabilization of CsPbBr 3 Perovskite Nanoparticles and Nanocomposite Films
Author(s) -
Kim Hyunki,
HightHuf Nicholas,
Kang JiHwan,
Bisnoff Phoebe,
Sundararajan Suvin,
Thompson Theo,
Barnes Michael,
Hayward Ryan C.,
Emrick Todd
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201916492
Subject(s) - zwitterion , nanocomposite , polymer , materials science , nanoparticle , polymer chemistry , benzophenone , copolymer , perovskite (structure) , chemical engineering , chemistry , nanotechnology , organic chemistry , molecule , composite material , engineering
Functional polymers with sulfobetaine or phosphorylcholine zwitterions as pendent groups are demonstrated as both ligands and host matrices for CsPbBr 3 perovskite nanoparticles (PNPs). These polymers produce nanocomposite films with excellent NP dispersion, optical transparency, and impressive resistance to NP degradation upon exposure to water. Multidentate interactions of the zwitterion‐containing copolymers with the PNPs induce dispersed or weakly aggregated nanocomposite morphologies, depending on the extent of zwitterionic functionality in the polymer. Incorporating additional functionality into the polymers, such as benzophenone pendent groups, yields lithographically patternable films, while time‐resolved photoluminescence measurements provide insight into the electronic impact of PNPs in zwitterionic polymer matrices.