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Updated: Jun 26, 2025
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Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation
Published on: October 1, 2019
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Highly Stable MOF-Type Lead Halide Luminescent Ferroelectrics
Chen Sun1, Yukong Li1, Jinlin Yin1
1Shanghai Key Laboratory of Chemical Assessment and Sustain ability, School of Chemical Science and Engineering, Tongji University, 1239 Siping Rd., Shanghai, 200092, China.
Angewandte Chemie (International Ed. in English)
|May 14, 2024
Summary
We developed robust, luminescent metal-organic framework (MOF)-type lead halide ferroelectrics. These materials exhibit exceptional stability and high Curie temperatures, paving the way for advanced energy-conversion applications.
Area of Science:
- Materials Science
- Solid-State Chemistry
- Crystallography
Background:
- Lead halide molecular ferroelectrics offer tunable luminescence but suffer from instability.
- Conventional metal-organic frameworks (MOFs) often have rigid structures limiting ferroelectric properties.
Purpose of the Study:
- To develop stable, luminescent ferroelectric materials based on lead halide MOFs.
- To investigate the structure-property relationships in these novel ferroelectrics.
Main Methods:
- Synthesis of isoreticular MOFs incorporating lead halide clusters.
- Characterization of structural, ferroelectric, and luminescent properties.
- Assessment of material stability under various conditions.
Main Results:
- Demonstrated exceptional stability of lead halide MOFs under ambient and aqueous conditions for over 15 months.
- Observed high Curie temperatures (up to 505 K) due to deformable [Pb2X]+ secondary building units.
- Achieved efficient spin-orbit coupling and long-lived afterglow emission through covalent organic-inorganic bonding.
Conclusions:
- Isoreticular MOF-type lead halide ferroelectrics offer a breakthrough in material stability and performance.
- These materials exhibit promising ferroelectric and luminescent properties for energy-conversion applications.
- The design strategy using deformable SBUs is key to achieving robust and functional ferroelectric MOFs.
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