Journal of Physical Chemistry B 2006-01-12

Growth of single-crystalline KNbO3 nanostructures.

A Magrez, E Vasco, J W Seo, C Dieker, N Setter, L Forró

Index: J. Phys. Chem. B 110(1) , 58-61, (2006)

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Abstract

This communication reports on the growth of highly uniform KNbO3 nanowires exhibiting a narrow diameter distribution around 60 nm and a length-to-width ratio up to 100. The nanowires were prepared by a hydrothermal route, which enables simple, gram-scale production. A systematic study of the synthesized nanowires in terms of the morphological and chemical characteristics was carried out by varying the temperature-pressure conditions and the composition of the starting mixture. The results indicate that highly uniform single-crystalline nanowires form within a narrow window of the ternary phase diagram of KOH-Nb2O5-H2O.