By using the modified Top Seeded Solution Growth technique high quality Nd 2- xCe xCuO 4 single crystals with homogeneous cerium distribution and sizes up to 10×10×2 mm have been prepared in Pt crucibles. It was revealed that the anisotropy of the growth rates in (001) plane and in  direction depends from growth temperature and equals 70 for 1050°C, 15 for 1115°C and 5 for 1150°C. It was found that Pt dissolves in NCCO single crystals and completely suppresses superconductivity at the concentration 0.02 at./f.u. Although Nd 1.82Ce 0.18Cu 0.98Zr 0.02O y and Nd 1.87Ce 0.13CuO y single crystals obtained by the slow cooling method in YSZ and Al 2O 3 crucibles demonstrate the superconductivity transitions with Tc=20 K and Tc=22 K but it was shown that ceramic crucibles are not stable and completely corroded within several days. The Borrmann effect was observed on the explored crystals.