Visualization of domain structure and piezoelectric energy harvesting in a ferroelectric metal-ligand cage

The ferroelectric behaviour of an octahedral cage [[Ni 6 (H 2 O) 12 (TPTA) 8 ]·(NO 3 ) 12 ·36H 2 O] (1) exhibiting high remnant polarization of 25.31 μC cm −2 is discovered. For the first time, clear domain structures and the characteristic electromechanical responses are demonstrated using piezores...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2023-03, Vol.59 (2), p.2919-2922
Main Authors: Prajesh, Neetu, Naphade, Dipti R, Yadav, Ashok, Kushwaha, Vikash, Praveenkumar, Balu, Zar ba, Jan K, Anthopoulos, Thomas D, Boomishankar, Ramamoorthy
Format: Article
Language:English
Subjects:
Cages
Domains
Energy conversion
Energy harvesting
Ferroelectric materials
Ferroelectricity
Nanogenerators
Piezoelectricity
Polymer matrix composites
Thin films
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Summary:The ferroelectric behaviour of an octahedral cage [[Ni 6 (H 2 O) 12 (TPTA) 8 ]·(NO 3 ) 12 ·36H 2 O] (1) exhibiting high remnant polarization of 25.31 μC cm −2 is discovered. For the first time, clear domain structures and the characteristic electromechanical responses are demonstrated using piezoresponsive force microscopy for a thin film of 1. Owing to its mechanical energy conversion capability, polymer composites of 1 were employed as efficient piezoelectric nanogenerators. A metal-organic cage exhibits ferro- and piezoelectric properties as visualized by its domain structure using PFM and utility in piezoelectric energy harvesting properties. This is a rare observation in supramolecular metal-organic cages.
ISSN:1359-7345
1364-548X
DOI:10.1039/d3cc00098b