High-quality K0.47Na0.53NbO3 single crystal toward high performance transducer

Chengpeng Hu, Hao Tian, Xiangda Meng, Guang Shi, Wenwu Cao, Zhongxiang Zhou

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A large-sized, high-quality single crystal of K0.47Na0.53NbO3 was grown by the top-seeded solution growth method. A complete set of elastic, dielectric, and piezoelectric constants for a [001]C-poled K0.47Na0.53NbO3 single crystal was determined via combined resonance and ultrasonic methods. The [001]C-poled K0.47Na0.53NbO3 (KNN47) single crystal exhibits a large piezoelectric coefficient (d33 = 220 pC N-1), high coupling coefficients (k33 = 0.759 and kt = 0.702), high dielectric constants (ϵT11 = 2194 and ϵS11 = 2162), and relatively high elastic compliance constants (SE11 = 14.3 × 10-12 N m-2 and SE33 = 17.6 × 10-12 N m-2). Furthermore, a large electrical field induced strain of 0.16% was measured from the slope in the unipolar strain versus electric field dependence. The piezoelectric coefficient, was determined to be as high as 401 pm V-1, likely resulting due to the morphotropic phase boundary around x = 0.5. These excellent properties make KNN47 a good candidate for application as a high-performance transducer material.

Original languageEnglish (US)
Pages (from-to)7003-7007
Number of pages5
JournalRSC Advances
Volume7
Issue number12
DOIs
StatePublished - Jan 1 2017

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Transducers
Single crystals
Phase boundaries
Permittivity
Ultrasonics
Electric fields
Compliance

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Hu, Chengpeng ; Tian, Hao ; Meng, Xiangda ; Shi, Guang ; Cao, Wenwu ; Zhou, Zhongxiang. / High-quality K0.47Na0.53NbO3 single crystal toward high performance transducer. In: RSC Advances. 2017 ; Vol. 7, No. 12. pp. 7003-7007.
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High-quality K0.47Na0.53NbO3 single crystal toward high performance transducer. / Hu, Chengpeng; Tian, Hao; Meng, Xiangda; Shi, Guang; Cao, Wenwu; Zhou, Zhongxiang.

In: RSC Advances, Vol. 7, No. 12, 01.01.2017, p. 7003-7007.

Research output: Contribution to journalArticle

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AU - Tian, Hao

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AU - Zhou, Zhongxiang

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