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The relaxor-based ferroelectric single crystals Pb(In1/2Nb1/2)O3- Pb(Mg1/3Nb2/3)O3-PbTiO3 were grown successfully using the vertical Bridgman technique. The crystals were spontaneously nucleated and induced to grow by the seed respectively, with diameter of Ø25-40 mm and length of 80-170 mm. The [001]-oriented wafers of as-grown crystals showed the excellent electrical characterizations (ε∼5500, tanδ∼1.35%, d33 ∼1900pC/N, k33∼0.9). Both the higher rhombohedral-tetragonal phase transition temperature (Tr/t ∼100-120°C) and Curie temperature (Tc ∼170-200°C) enlarged the operating temperature range of the devices. The crystals had the stable time dependence of piezoelectric properties. Therefore, the successful growth and high performance made the crystal be a promising candidate for the ultrasonic applications. [ABSTRACT FROM AUTHOR]