Perovskite-type
NaTaO3 is best known as a semiconductor
photocatalyst that splits water under ultraviolet (UV) light irradiation.
Here, we report the flux growth of millimeter-sized, platy NaTaO3 crystals using Na2MoO4 as the flux.
During flux growth, the crystal size and the number of anisotropic
crystals increased as the holding temperature was increased from 1100
to 1500 °C. By slowly cooling from 1500 to 1300 °C at a
rate of 5 °C·h–1, rectangular platy crystals
grew up to 8.0 mm × 4.7 mm × 0.044 mm. The grown NaTaO3 crystals belonged to orthorhombic system and the index of
the well-developed faces was {010}.
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