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兴发pt登录学报, 2019, 36(5): 49-53     https://doi.org/10.16039/j.cnki.cn22-1249.2019.05.013
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Ho/Er在BaTiO3陶瓷中的固溶度和缺陷化学
苏雅丽1,2,路大勇1
1.兴发pt登录 材料科学与工程研究中心;2.吉林大学 化学学院
Dielectric Properties and Exploration of Self-compensation Mode of Ho/Er in BaTiO3 Ceramics
SU Yali, LU Dayong
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摘要 

采用混合氧化物方法制备(Ba1-xHox)(Ti1-xErx)O3(简称BHTE)陶瓷。通过X射线衍射(XRD)、电子顺磁共振(EPR)和光致发光技术研究了BHTE陶瓷的晶体结构、固溶度和缺陷化学。结果表明:Ho3+/Er3+离子在BaTiO3晶格中的固溶度仅为x = 0.01,陶瓷为四方钙钛矿结构。x ≥ 0.02时,有少量的Er2O3析出,并形成Ba6Ho2Ti4O17杂相。讨论了BHTE陶瓷的位占据、固溶形成和缺陷化学。

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苏雅丽
路大勇
关键词:  钬铒掺杂钛酸钡  固溶度  缺陷化学  电子顺磁共振  光致发光     
Abstract: 

(Ba1-xHox)(Ti1-xErx)O3 ceramics (abbreviated BHTE) were prepared using the mixed-oxides route. The crystal structure, solid solubility, and defect chemistry of BHTE were investigated using X-ray diffraction (XRD), electron paramagnetic resonance (EPR) and photoluminescence. The results indicated that the solubility limit of Ho3+/Er3+ ions in the BaTiO3 lattice is x = 0.01 and BHTE ceramics has a tetragonal perovskite structure. When x is more than 0.02, a small amount of Er2O3 separates out in BHTE, accompanied by Ba6Ho2Ti4O17 phase. The site occupation, solid solution formation, and defect chemistry are discussed.

Key words:  Ho and Er co-doped BaTiO3    solid solubility    defect chemistry    electron paramagnetic resonance    photoluminescence
               出版日期:  2019-05-25      发布日期:  2019-05-25      整期出版日期:  2019-05-25
ZTFLH:  O614.23  
引用本文:    
苏雅丽, 路大勇. Ho/Er在BaTiO3陶瓷中的固溶度和缺陷化学 [J]. 兴发pt登录学报, 2019, 36(5): 49-53.
SU Yali, LU Dayong. Dielectric Properties and Exploration of Self-compensation Mode of Ho/Er in BaTiO3 Ceramics . Journal of Jilin Institute of Chemical Technology, 2019, 36(5): 49-53.
链接本文:  
http://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2019.05.013  或          http://xuebao.jlict.edu.cn/CN/Y2019/V36/I5/49
[1] 季虑, 路大勇. (Ba1-xPrx)Ti1-x/4O3陶瓷固溶度及位占据的研究 [J]. 兴发pt登录学报, 2019, 36(3): 78-81.
[2] 高祥禄, 路大勇. Ho3+离子在BaTiO3陶瓷中自补偿模式探索及反常介电性质 [J]. 兴发pt登录学报, 2019, 36(3): 74-77.
[3] 路大勇. 钛酸钡介电陶瓷中变价稀土离子的价态鉴定及缺陷化学的研究进展[J]. 兴发pt登录学报, 2018, 35(7): 8-13.
[4] 梁 月, 路大勇. Tm3+离子在BaTiO3介电陶瓷中的位占据研究[J]. 兴发pt登录学报, 2018, 35(1): 44-46.
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