Journal
NANOSCALE
Volume 10, Issue 45, Pages 21406-21413Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8nr07825d
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Funding
- Department of Science and Technology, Ministry of Science and Technology, India [SR/WOS-A/PM-16/2016]
- DST Nanomission Thematic Unit grant
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In multiferroic LuFeO3 the hexagonal (-h) phase is an intermediate metastable phase encountered during the amorphous to orthorhombic (-o) transformation and is ferroelectric in nature. Thus far it has only been stabilized in a substrate-supported few layered ultrathin film form. Herein we show that the surface-induced strain field intrinsically present in nano-systems can self-stabilize this phase and the hexagonal to orthorhombic phase constitution ratio depends on the shape of the nanomaterial. Thus, nanoparticles (nanofibres) strain-stabilize the o:h ratio of about 75:25 (23:77). The inclusion of nano-LuFeO3 into PDMS renders impressive nanogenerator performance, consistent with the ferroelectric phase content.
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