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@ARTICLE{Li:890272,
      author       = {Li, Luying and Hu, Xiaokang and Jin, Lei and He, Yahua and
                      Jia, Shuangfeng and Sheng, Huaping and Cheng, Yongfa and Li,
                      Li and Wang, Zhao and Gu, Haoshuang and Zhu, Yinlian and
                      Wang, Jianbo and Gao, Yihua},
      title        = {{A}tomic scale study of the oxygen annealing effect on
                      piezoelectricity enhancement of ({K},{N}a){N}b{O} 3
                      nanorods},
      journal      = {Journal of materials chemistry / C},
      volume       = {8},
      number       = {44},
      issn         = {2050-7534},
      address      = {London ˜[u.a.]œ},
      publisher    = {RSC},
      reportid     = {FZJ-2021-00853},
      pages        = {15830 - 15838},
      year         = {2020},
      abstract     = {With the increasing requirement of developing non-toxic
                      piezoelectric materials, an alkaline niobate-based
                      perovskite solid (K,Na)NbO3 (KNN) has been intensively
                      studied. Promising piezoelectric properties are reported,
                      which are mostly achieved by adding other elements, or
                      simply varying the K/Na ratio. It is found that KNN nanorods
                      grown on conductive Nb-doped SrTiO3 (STO) substrates show
                      enhanced piezoelectric properties after annealing at 800 °C
                      for 12 h [Y. He, Z. Wang, W. Jin, X. Hu, L. Li, Y. Gao, X.
                      Zhang, H. Gu and X. Wang, Appl. Phys. Lett., 2017, 110,
                      212904]. However, the underlying mechanism for property
                      enhancement at the atomic scale is not clearly revealed. In
                      this study, comprehensive transmission electron microscopy
                      techniques are utilized focusing on the atomic scale study
                      of the interfacial composition, structures, strain, dipolar
                      displacement vectors and their variations along the
                      interface normal of the as-grown and annealed KNN nanorods.
                      The results indicate phase transformation during annealing,
                      and a larger spontaneous polarization within each unit cell
                      of the annealed KNN nanorods, which lead to an overall
                      enhancement of the piezoelectric properties. These results
                      would be very beneficial for advanced nanogenerators and
                      sensors with enhanced piezoelectric properties.},
      cin          = {ER-C-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000590410200029},
      doi          = {10.1039/D0TC03152F},
      url          = {https://juser.fz-juelich.de/record/890272},
}