Structure,Electrical, and Optical Properties of (Na1/2Bi1/2)TiO3–1.5at.%Bi(Zn1/2Ti1/2)O3 Lead‐free Single Crystal Grown by a TSSG Technique |
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| Authors: | Chao Chen Haiwu Zhang Xiangyong Zhao Hao Deng Long Li Bo Ren Di Lin Xiaobing Li Haosu Luo Zhen Chen Jun Su |
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| Affiliation: | 1. Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, University of Chinese Academy of Sciences, , Shanghai, 201800 China;2. College of Materials Science and Engineering, Jingdezhen Ceramic Institute, , Jingdezhen, Jiangxi, 333001 China;3. University of Chinese Academy of Sciences, , Beijing, 100049 China;4. Shibei Power Supply Branch, Shanghai Municipal Electric Power Company, , Shanghai, 200072 China |
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| Abstract: | Lead‐free single crystal (Na1/2Bi1/2)TiO3–1.5 at.%Bi(Zn1/2Ti1/2)O3 (NBT–1.5BZT) with dimension of Φ35 mm × 12 mm was successfully grown by a top‐seeded solution growth technique. The average and local structure were studied by a combination of X‐ray diffraction and Raman spectroscopy. The electric and optical properties of <001>‐oriented single crystals were investigated systematically. Compared with pure NBT, the piezoelectric constant and transmission coefficient were both enhanced, that is, from 62 pC/N and ~60% to 121 pC/N and ~70%, respectively. Furthermore, domain structure observation suggested that the <110>‐oriented tetragonal ferroelastic domains in NBT were suppressed at room temperature with addition of BZT, which was responsible for the improved piezoelectric and optical properties of NBT–1.5BZT single crystal. |
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