Issue 9, 2021

Large-sized crystal growth and piezoelectric properties of the single crystals of LiNa5Mo9O30

Abstract

Large-sized crystals of LiNa5Mo9O30 with seeds in the a-, b- and c-directions were grown successfully by the top-seeded solution growth method. The relative dielectric constants were determined to be ε11/ε0 = 16.11, ε22/ε0 = 10.52, and ε33/ε0 = 16.78, respectively. A complete set of elastic and piezoelectric constants of the LiNa5Mo9O30 single crystal was determined by means of a resonance technique and impedance analysis at room temperature. The results show that the LiNa5Mo9O30 crystal possesses five piezoelectric constants (d15 = 0.14 pC N−1, d24 = 2.32 pC N−1, d31 = 0.17 pC N−1, d32 = 0.20 pC N−1, d33 = 1.20 pC N−1). As a polar crystal, the octahedral distortion and dipole moment of MoO6 in LiNa5Mo9O30 are analyzed and calculated to explain the relationship between the piezoelectric properties and the structure.

Graphical abstract: Large-sized crystal growth and piezoelectric properties of the single crystals of LiNa5Mo9O30

Supplementary files

Article information

Article type
Paper
Submitted
16 Dec 2020
Accepted
22 Jan 2021
First published
11 Feb 2021

CrystEngComm, 2021,23, 1912-1917

Large-sized crystal growth and piezoelectric properties of the single crystals of LiNa5Mo9O30

X. Du, F. Liu, Z. Gao, X. Guo, X. Wang, Y. Sun and X. Tao, CrystEngComm, 2021, 23, 1912 DOI: 10.1039/D0CE01822H

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