物理化学学报 >> 2017, Vol. 33 >> Issue (6): 1261-1266.doi: 10.3866/PKU.WHXB201702281

论文 上一篇    

钙钛矿铁电纳米片诱导的P (VDF-TrFE)取向生长

刘金1,麦江泉2,李诗1,任召辉1,*(),李铭1,武梦娇1,吴勇军1,路新慧2,*(),李翔1,田鹤3,王宗荣1,韩高荣1,*()   

  1. 1 浙江大学,硅材料国家重点实验室,唐仲英传感材料及应用研究中心,材料科学与工程学院,浙江杭州310027
    2 香港中文大学,物理系,香港新界999077
    3 浙江大学,电子显微镜中心,硅材料国家重点实验室,材料科学与工程学院,浙江杭州310027
  • 收稿日期:2017-02-15 发布日期:2017-05-19
  • 通讯作者: 任召辉,路新慧,韩高荣 E-mail:renzh@zju.edu.cn;xhlu@phy.cuhk.edu.hk;hgr@zju.edu.cn
  • 基金资助:
    国家自然科学基金(51232006);国家自然科学基金(51472218);国家973项目(2015CB654901);中央高校基本科研业务费专项资金(2016FZA4005);香港研究资助局科研基金(14303314);香港中文大学基金(4053128)

Perovskite Ferroelectric Nanoplates Induced a Highly Oriented Growth of P (VDF-TrFE) Films

Jin LIU1,Jiang-Quan MAI2,Shi LI1,Zhao-Hui REN1,*(),Ming LI1,Meng-Jiao WU1,Yong-Jun WU1,Xin-Hui LU2,*(),Xiang LI1,He TIAN3,Zong-Rong WANG1,Gao-Rong HAN1,*()   

  1. 1 State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Application, Zhejiang University, Hangzhou 310027, P. R. China
    2 Department of Physics, Chinese University of Hong Kong, New Territories, Hong Kong 999077, P. R. China
    3 Center of Electron Microscope, State Key Laboratory of Silicon Material, School of Material Science & Engineering, Zhejiang University, Hangzhou 310027, P. R. China
  • Received:2017-02-15 Published:2017-05-19
  • Contact: Zhao-Hui REN,Xin-Hui LU,Gao-Rong HAN E-mail:renzh@zju.edu.cn;xhlu@phy.cuhk.edu.hk;hgr@zju.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(51232006);the National Natural Science Foundation of China(51472218);the National Key Basic Research Special Foundation, China (973)(2015CB654901);Fundamental Research Funds for the Central Universities, China(2016FZA4005);RGC of Hong Kong GRF(14303314);CUHK Direct Grant, China(4053128)

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摘要：

半结晶的铁电聚合物在柔性电子器件中极具应用前景，控制晶相生长对其性能优化至关重要。本文通过引入少量（0.2%）单晶单畴的PbTiO3纳米片对P（VDF-TrFE）（简称PVTF）铁电薄膜的生长进行有效调节，获得了高度取向的铁电薄膜且铁电性能得到了大幅提高。PbTiO3纳米片铁电极化对PVTF极性分子的诱导作用可能是薄膜取向生长与性能提高的原因。

关键词: P (VDF-TrFE), PbTiO3, 纳米片, 取向生长, 铁电性

Abstract:

Ferroelectric polymers are particularly attractive for applications in flexible electronic devices, and controlling its crystalline phase growth is crucial for obtaining optimized ferroelectric properties. Herein we report that a very low introduction (0.2% (w)) of single-domain ferroelectric PbTiO3 nanoplates can effectively mediate the nucleation and subsequent growth of a crystalline phase within P (VDF-TrFE) (denoted by PVTF), forming highly oriented films and significantly improving the ferroelectric properties due to an alignment of the polarization directions of the polymer and the nanoplates.

Key words: P (VDF-TrFE), PbTiO3, Nanoplate, Orientation growth, Ferroelectricity