Growth and characterisation of KNbO2 single crystals

The growth of good quality colourless potassium niobate (kNbO(3)) single cr ystals is reported. Various flux compositions with corresponding starting t emperatures were chosen from the phase diagram to avoid the black/blue colo ur formation in growth of KNbO3 single crystals. Deviation of compositions of colourless and black crystals from the starting composition were analyse d by electron spectroscopy for chemical analysis. Dielectric constant and p yroelectric coefficients were calculated with respect to temperature and th e transition temperature was confirmed by differential scanning calorimetry studies. Hysteresis loops have been traced with respect to electric field.