Synthesis and piezoelectric response of cubic and spherical LiNbO 3 nanocrystals

Debasish Mohanty, Girija S. Chaubey, Amin Yourdkhani, Shiva Adireddy, Gabriel Caruntu, John B. Wiley

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

Methods have been developed for the shape-selective synthesis of ferroelectric LiNbO 3 nanoparticles. Decomposition of the single-source precursor, LiNb(O-Et) 6, in the absence of surfactants, can reproducibly lead to either cube- or sphere-like nanoparticles. X-Ray diffraction shows that the LiNbO 3 nanoparticles are rhombohedral (R3c). Sample properties were examined by piezoresponse force microscopy (PFM) and Raman where both sets of nanoparticles exhibit ferroelectricity. The longitudinal piezoelectric coefficients, d 33, varied with shape where the largest value was exhibited in the nanocubes (17 pm V -1 for the cubes versus 12 pm V -1 for spheres).

Original languageEnglish
Pages (from-to)1913-1916
Number of pages4
JournalRSC Advances
Volume2
Issue number5
DOIs
StatePublished - Mar 7 2012

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