Texture and Phase Recognition Analysis of 尾-NaYF4 Nanocrystals

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• 作者：Valerio Voliani ; Mauro Gemmi ; Laura Franc茅s-Soriano ; Mar铆a Gonz谩lez-B茅jar ; Julia P茅rez-Prieto
• 刊名：Journal of Physical Chemistry C
• 出版年：2014
• 出版时间：May 29, 2014
• 年：2014
• 卷：118
• 期：21
• 页码：11404-11408
• 全文大小：366K
• 年卷期：v.118,no.21(May 29, 2014)
• ISSN：1932-7455

文摘

Texture and phase recognition analysis (TPRA) based on electron nanodiffraction technique is used to characterize the geometry of up-conversion nanocrystals (UCNCs) synthesized by the common thermal-decomposition protocol in the presence of a stoichiometric amount of NH₄F. Here, we confirmed experimentally that despite the apparently different shapes of samples (hexagons, rods, and cubes), all the nanocrystals are actually 尾-phase hexagonal prisms. This is of relevance since many biological features of nanostructures, such as cellular internalization and cytotoxicity, are governed by their geometry. In addition, reproducibility in biological experiments is paramount.