Large-sized crystal growth and piezoelectric properties of the single crystals of LiNa5Mo9O30
- 11 February 2021
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in CrystEngComm
- Vol. 23 (9), 1912-1917
- https://doi.org/10.1039/d0ce01822h
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.Keywords
Funding Information
- National Natural Science Foundation of China (51321091, 51572155, 11504389)
- National Basic Research Program of China (2016YFB1102201)
- Higher Education Discipline Innovation Project (BP2018013)
- Key Technology Research and Development Program of Shandong (2018CXGC0411)
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