无机材料学报 ›› 2021, Vol. 36 ›› Issue (3): 277-282.DOI: 10.15541/jim20200254 CSTR: 32189.14.10.15541/jim20200254

所属专题: 【虚拟专辑】钙钛矿材料(2020~2021)

• 研究论文 • 上一篇    下一篇

NBT-BNT陶瓷的光致形变性能

董正明1,2(), 李修2,3, 陈晨2(), 曹明贺1(), 易志国2   

  1. 1. 武汉理工大学 材料科学与工程学院, 武汉 430070
    2. 中国科学院 上海硅酸盐研究所, 高性能陶瓷和超微结构国家重点实验室, 上海 200050
    3. 华中师范大学 物理科学与技术学院, 武汉 430079
  • 收稿日期:2020-05-13 修回日期:2020-09-04 出版日期:2021-03-20 网络出版日期:2020-10-10
  • 通讯作者: 曹明贺, 教授. E-mail: caominghe@whut.edu.cn
    陈 晨, 助理研究员. E-mail: chen.chen@mail.sic.ac.cn
  • 作者简介:董正明(1996-), 男, 硕士研究生. E-mail: dongzhengming_yzu@163.com
  • 基金资助:
    国家自然科学基金(51872311);国家自然科学基金(51902331);中国科学院前沿科学重点研究计划项目(QYZDB-SSW-JSC027);上海市自然科学基金(19ZR1464900)

Photostriction of NBT-BNT Ceramics

DONG Zhengming1,2(), LI Xiu2,3, CHEN Chen2(), CAO Minghe1(), YI Zhiguo2   

  1. 1. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
    2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
    3. College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China
  • Received:2020-05-13 Revised:2020-09-04 Published:2021-03-20 Online:2020-10-10
  • Contact: CAO Minghe, professor. E-mail: caominghe@whut.edu.cn
    CHEN Chen, assistant professor. E-mail: chen.chen@mail.sic.ac.cn
  • About author:DONG Zhengming(1996-), male, Master candidate. E-mail: dongzhengming_yzu@163.com
  • Supported by:
    National Natural Science Foundation of China(51872311);National Natural Science Foundation of China(51902331);Frontier Science Key Project of the Chinese Academy of Sciences(QYZDB-SSW-JSC027);Natural Science Foundation of Shanghai(19ZR1464900)

摘要:

光致形变材料在光致驱动器和传感器等光机电领域有重要的应用前景。本研究采用放电等离子体烧结法制备了Ni掺杂Na0.5Bi0.5TiO3-BaTiO3(NBT-BT)陶瓷材料Na0.5Bi0.5TiO3-Ba(Ti0.5Ni0.5)O3 (NBT-BNT)。进一步研究发现样品在405、520及655 nm波长激光照射下均表现出10 -3数量级的光致形变响应, 其光致形变系数达到10 -11 m 3/W。通过研究NBT-BNT陶瓷在外加光源照射下的原位X射线衍射图谱, 发现所有衍射峰在可见光照射下均发生小角度的偏移, 说明光照引起的材料晶格畸变是NBT-BNT材料光致形变效应的主要原因。

关键词: 铁电材料, 光致形变, 可见光响应, 钙钛矿

Abstract:

Photostrictive materials exhibit great potential in the light-driven microactuators/sensors, light-controlled microrobots, and other optomechanical applications. In this study, we present the photostrictive performance of Ni-modified Na0.5Bi0.5TiO3-BaTiO3 (NBT-BT) ceramics prepared by using spark plasma sintering. Under visible light illumination (405, 520 and 655 nm, respectively), the Na0.5Bi0.5TiO3-Ba(Ti0.5Ni0.5)O3 (NBT-BNT) ceramics exhibits large photostriction of the order of 10 -3 and photostriction coefficient around 10 -11 m 3/W. The XRD peaks of the sample under external illumination show low angle shift, indicating the light-induced lattice distortion, which contributes to the large photostrictive response of NBT-BNT ceramics.

Key words: ferroelectric material, photostriction, visible light response, perovskite

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