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Dual‐Protected Metal Halide Perovskite Nanosheets with an Enhanced Set of Stabilities
- Source :
- Angewandte Chemie. 133:7335-7342
- Publication Year :
- 2021
- Publisher :
- Wiley, 2021.
-
Abstract
- Approaches to achieve stable perovskite nanocrystals (PNCs) of interest, in particular those with large structural anisotropy, through protective coating of the inorganic shell at a single-nanocrystal (NC) level are comparatively few and limited in scope. Reported here is a robust amphiphilic-diblock-copolymer-enabled strategy for crafting highly-stable anisotropic CsPbBr3 nanosheets (NSs) by in situ formation of a uniform inorganic shell (1st shielding) that is intimately ligated with hydrophobic polymers (2nd shielding). The dual-protected NSs display an array of remarkable stabilities (i.e., thermal, photostability, moisture, polar solvent, aliphatic amine, etc.) and find application in white-light-emitting diodes. In principle, by anchoring other multidentate amphiphilic polymer ligands on the surface of PNCs, followed by templated-growth of shell materials of interest, a rich variety of dual-shelled, multifunctional PNCs with markedly improved stabilities can be created for use in optics, optoelectronics, and sensory devices.
- Subjects :
- Nanostructure
Materials science
Shell (structure)
Halide
engineering.material
010402 general chemistry
01 natural sciences
Catalysis
Metal
Set (abstract data type)
Coating
Copolymer
Perovskite (structure)
chemistry.chemical_classification
010405 organic chemistry
General Chemistry
Polymer
General Medicine
0104 chemical sciences
Dual (category theory)
Crystallography
Nanocrystal
Chemical engineering
chemistry
visual_art
engineering
visual_art.visual_art_medium
Subjects
Details
- ISSN :
- 15213757 and 00448249
- Volume :
- 133
- Database :
- OpenAIRE
- Journal :
- Angewandte Chemie
- Accession number :
- edsair.doi.dedup.....52ddd83dec6f5bb3b21acb0ec8fabd7d