Size‐Controlled Single‐Crystal Perovskite PbTiO₃ Nanofibers from Edge‐Shared TiO₆ Octahedron Columns

Tetragonal perovskite PbTiO3 nanofibers are prepared by a two-step method comprising synthesis of pre-perovskite (PP) PbTiO3 nanofibers by a hydrothermal method followed by annealing at 680 °C. Adjustment of the Pb/Ti molecular ratio in the hydrothermal reaction controls the size of the PP nanofibers and hence of the perovskite PbTiO3 nanofibers. Ferroelectric properties remain in fibers of diameter 13 nm. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.