A Molecular Ferroelectric Thin Film of Imidazolium Perchlorate That Shows Superior Electromechanical Coupling

Authors

  • Dr. Yi Zhang,

    1. Ordered Matter Science Research Center, Southeast University, Nanjing 211189 (P. R. China)
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    • These authors contributed equally to this work.

  • Prof. Yuanming Liu,

    1. Department of Mechanical Engineering, University of Washington, Seattle, WA 98195 (USA)
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    • These authors contributed equally to this work.

  • Dr. Heng-Yun Ye,

    1. Ordered Matter Science Research Center, Southeast University, Nanjing 211189 (P. R. China)
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  • Dr. Da-Wei Fu,

    1. Ordered Matter Science Research Center, Southeast University, Nanjing 211189 (P. R. China)
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  • Wenxiu Gao,

    1. School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094 (P.R. China)
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  • He Ma,

    1. School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094 (P.R. China)
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  • Prof. Zhiguo Liu,

    1. Department of Materials Science and Engineering, Nanjing University, Nanjing 210093 (P.R. China)
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  • Prof. Yunya Liu,

    1. Faculty of Materials, Optoelectronics and Physics, Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Hunan 411105 (China)
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  • Prof. Wen Zhang,

    1. Ordered Matter Science Research Center, Southeast University, Nanjing 211189 (P. R. China)
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  • Prof. Jiangyu Li,

    1. Department of Mechanical Engineering, University of Washington, Seattle, WA 98195 (USA)
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  • Prof. Guo-Liang Yuan,

    Corresponding author
    1. School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094 (P.R. China)
    • Guo-Liang Yuan, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094 (P.R. China)===

      Ren-Gen Xiong, Ordered Matter Science Research Center, Southeast University, Nanjing 211189 (P. R. China)===

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  • Prof. Ren-Gen Xiong

    Corresponding author
    1. Ordered Matter Science Research Center, Southeast University, Nanjing 211189 (P. R. China)
    • Guo-Liang Yuan, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094 (P.R. China)===

      Ren-Gen Xiong, Ordered Matter Science Research Center, Southeast University, Nanjing 211189 (P. R. China)===

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  • This work was supported by the 973 project (2014CB932103) and the National Natural Science Foundation of China 21290172, 11134004, 21371032, and USA NSF CMMI 1100339.

Abstract

Molecular ferroelectric thin films are highly desirable for their easy and environmentally friendly processing, light weight, and mechanical flexibility. A thin film of imidazolium perchlorate processed from aqueous solution is an excellent molecular ferroelectric with high spontaneous polarization, high Curie temperature, low coercivity, and superior electromechanical coupling. These attributes make it a molecular alternative to perovskite ferroelectric films in sensing, actuation, data storage, electro-optics, and molecular/flexible electronics.

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