Three-dimensional oriented attachment growth of single-crystal pre-perovskite PbTiO3 hollowed fibers

Ruoyu Zhao, Ming Li, Zhaohui Ren, Yihan Zhu, Gaorong Han

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Hollowed single-crystal pre-perovskite PbTiO fibers (PP-PTF) were successfully synthesized via a polyvinyl alcohol (PVA) assisted hydrothermal process. The as-prepared PP-PTF were characterized to be 0.3-1 μm in diameter and tens of micrometers in length by adjusting the concentration of PVA to 0.8 g L. Microstructure characterization of the samples at different reaction times revealed that PP-PTF were formed via a three-dimensional (3D) hierarchical oriented attachment (OA) growth process. The initial growth units were determined to be single-crystal pre-perovskite PbTiO fibers with a diameter of 10-20 nm. Zeta potential measurement suggested that the main driving force of the OA process is the surface electrostatic force, which is induced by the incompletely bonded Pb and O atomic layers on the surface of the {110} plane. Moreover, molecular dynamics simulations have been employed to reveal a stable configuration of the initial pre-perovskite PbTiO growth units, agreeing well with the experimental results.
Original languageEnglish (US)
Pages (from-to)448-453
Number of pages6
Issue number4
StatePublished - 2018

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was financially supported by the National Natural Science Foundation of China (No. 51232006 and 51472218) and the Fundamental Research Funds for the Central Universities (No. 2017FZA4008).


Dive into the research topics of 'Three-dimensional oriented attachment growth of single-crystal pre-perovskite PbTiO3 hollowed fibers'. Together they form a unique fingerprint.

Cite this