Thermally stable ferroelectricity and photoluminescence in Sm-doped 0.8(Bi_0.5Na_0.5)TiO₃-0.2SrTiO₃ ferroelectric ceramics

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• 作者：Junyu He^a ; Jingji Zhang^a ; ^{zjjtongji@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Hongjie Xing^a ; Haoli Pan^a ; Xuanrui Jia^a ; Jiangying Wang^a ; ^{wjyliu@163.com" class="auth_mail" title="E-mail the corresponding author} ; Peng Zheng^b
• 关键词：Perovskite ; Ferroelectrics ; Strain ; Photoluminescence ; Thermal stability
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：43
• 期：1
• 页码：250-255
• 全文大小：922 K

文摘

Reddish orange-emitting 0.8Bi_0.5Na_0.5TiO₃-0.2SrTiO₃-xSm ferroelectric ceramics were prepared by the conventional solid-state reaction route, and their electrical and optical temperature stability were also investigated. Temperature-dependent measurement of polarization revealed that the addition of Sm³⁺ ion significantly improved their thermal stability of ferroelectric properties. Temperature-dependent photoluminescent spectra showed that the 0.8Bi_0.5Na_0.5TiO₃-0.2SrTiO₃-xSm multifunctional ceramics exhibit well thermal stability of photoluminescence in the temperature range from 20 °C to 160 °C, which is superior to the thermal stability of the KBaPO₄:Sm phosphors.