Growth of single-crystalline KNbO3 nanostructures.
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.
Laboratoire des Nanostructures et des Nouveaux Matériaux Electroniques, Institut de Physique de la Matière Complexe, Switzerland. arnaud.magrez@epfl.ch
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Magrez
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Vasco
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Dieker
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D003460:Crystallization; D049329:Nanostructures / Q000737:chemistry*; D009556:Niobium / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D010316:Particle Size; D011188:Potassium / Q000737:chemistry*; D033362:Powder Diffraction; D011312:Pressure; D013696:Temperature
D010087:Oxides; D009556:Niobium; C477466:potassium niobate; D011188:Potassium