Study of Crystallization and Coalescence of Nanocrystals in Amorphous Glass at High Temperature

Ting Wang, Wei Lu, Xuhui Xu, Jianbei Qiu, Siu Fung Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)


Amorphous fluoride glass is used as the reaction chamber (i.e., solid cell) to grow Ba2LaF7 (BLF) nanocrystals at elevation temperatures (i.e., 300-500 °C) so that in situ real-time crystallization and coalescence of BLF nanocrystals can be observed. Due to the inherent advantages of the liquid-like solid medium, high temporal and spatial resolution transmission electron microscopy images can be obtained. Hence, we reveal that the twinned and quadruplet BLF nanocrystals are formed at low temperature (≤430 °C) and the unification of two nanocrystals via the two pathways (i.e., migration with and without rotation) to a single defect-free BLF nanocrystal is favored at high temperature (≥470 °C).

Original languageEnglish
Pages (from-to)9500-9504
Number of pages5
JournalInorganic Chemistry
Issue number14
Publication statusPublished - 26 Jun 2019

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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