Abstract: Cd4BiO (BO3) 3 single crystals with dimensions of 40 × 10 × 3 mm3and 32 × 10 × 2 mm3 have been successfully grown by top-seed crystal growth (TSCG) method from a high-temperature melt for the first time.The X-ray powder diffraction and differential scanning calorimetric experiments indicate that Cd4BiO( BO3 )3 melts congruently at 897 ℃ and decomposes at 990 ℃.The transmissivity of the crystal is about 80; in the wavelength range of 750-2550 nm with the UV cut-off wavelength about 395 nm.

Key words: Cd4BiO (BO3) 3 single crystals with dimensions of 40 × 10 × 3 mm3and 32 × 10 × 2 mm3 have been successfully grown by top-seed crystal growth (TSCG) method from a high-temperature melt for the first time.The X-ray powder diffraction and differential scanning calorimetric experiments indicate that Cd4BiO( BO3 )3 melts congruently at 897 ℃ and decomposes at 990 ℃.The transmissivity of the crystal is about 80; in the wavelength range of 750-2550 nm with the UV cut-off wavelength about 395 nm.