Reversed Crystal Growth

In the last decade, a reversed growth route has been found in many crystal growth processes. In these systems, a single crystal does not develop from a single nucleus. The precursor molecules/ions or nanocrystallites aggregate into some large amorphous or polycrystalline particles. Multiple-nucleati...

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Vydáno v:Crystals (Basel) Ročník 9; číslo 1; s. 7
Hlavní autor: Zhou, Wuzong
Médium: Journal Article
Jazyk:angličtina
Vydáno: Basel MDPI AG 01.01.2019
Témata:
Atoms & subatomic particles
Core-shell structure
Crystal growth
crystal morphology
Crystal structure
Crystallization
electron microscopy
hollow crystal
Morphology
Nucleation
Polycrystals
Sandwich structures
Scanning electron microscopy
Single crystals
Zeolites
ISSN:2073-4352, 2073-4352
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Popis
Shrnutí:In the last decade, a reversed growth route has been found in many crystal growth processes. In these systems, a single crystal does not develop from a single nucleus. The precursor molecules/ions or nanocrystallites aggregate into some large amorphous or polycrystalline particles. Multiple-nucleation on the surface of the amorphous particles or surface re-crystallization of the polycrystalline particles then takes place, forming a single crystal shell with a regular morphology. Finally, the crystallization extends from the surface to the core to form single crystals. This non-classical crystal growth route often results in some special morphologies, such as core-shell structures, hollow single crystals, sandwich structures, etc. This article gives a brief review of the research into reversed crystal growth and demonstrates that investigation of detailed mechanisms of crystal growth enables us to better understand the formation of many novel morphologies of the crystals. Some unsolved problems are also discussed.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 14
ISSN:2073-4352
2073-4352
DOI:10.3390/cryst9010007