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

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

doi:10.1021/acs.inorgchem.9b01491

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 publication › Journal article › Academic research › peer-review

10 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	9500-9504
Number of pages	5
Journal	Inorganic Chemistry
Volume	58
Issue number	14
DOIs	https://doi.org/10.1021/acs.inorgchem.9b01491
Publication status	Published - 26 Jun 2019

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/acs.inorgchem.9b01491

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title = "Study of Crystallization and Coalescence of Nanocrystals in Amorphous Glass at High Temperature",

abstract = "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).",

author = "Ting Wang and Wei Lu and Xuhui Xu and Jianbei Qiu and Yu, {Siu Fung}",

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T1 - Study of Crystallization and Coalescence of Nanocrystals in Amorphous Glass at High Temperature

AU - Wang, Ting

AU - Lu, Wei

AU - Xu, Xuhui

AU - Qiu, Jianbei

AU - Yu, Siu Fung

PY - 2019/6/26

Y1 - 2019/6/26

N2 - 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).

AB - 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).

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DO - 10.1021/acs.inorgchem.9b01491

M3 - Journal article

C2 - 31241904

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SN - 0020-1669

VL - 58

SP - 9500

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JO - Inorganic Chemistry

JF - Inorganic Chemistry

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ER -

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

Abstract

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