In situ Transmission Electron Microscopy observation of Ag nanocrystal evolution by surfactant free electron-driven synthesis
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comunitat-uji-handle2:10234/7013
comunitat-uji-handle3:10234/8638
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Title
In situ Transmission Electron Microscopy observation of Ag nanocrystal evolution by surfactant free electron-driven synthesisDate
2016Publisher
Nature Publishing GroupISSN
2045-2322Bibliographic citation
Longo, E. et al. In situ Transmission Electron Microscopy observation of Ag nanocrystal evolution by surfactant free electron-driven synthesis. Sci. Rep. 6, 21498; doi: 10.1038/srep21498 (2016).Type
info:eu-repo/semantics/articlePublisher version
http://www.nature.com/articles/srep21498Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
The study of the interaction of electron irradiation with matter and the response of the material to the passage of electrons is a very challenging problem. However, the growth mechanism observed during nanostructural ... [+]
The study of the interaction of electron irradiation with matter and the response of the material to the passage of electrons is a very challenging problem. However, the growth mechanism observed during nanostructural evolution appears to be a broad and promising scientific field in nanotechnology. We report the in situ TEM study of nanostructural evolution of electron-driven silver (Ag) nanocrystals through an additive-free synthetic procedure. Observations revealed the direct effect of the electron beam on the morphological evolution of Ag nanocrystals through different mechanisms, such as mass transport, site-selective coalescence, and an appropriate structural configuration after coalescence leading to a more stable configuration. A fundamental understanding of the growth and formation mechanisms of Ag nanocrystals, which interact with the electron beam, is essential to improve the nanocrystal shape-control mechanisms as well as the future design and study of nanomaterials. [-]
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