Single crystal plates (similar to 5 x 5 x 0.1 mm(3)) of pure and Sr-doped [Ca2CoO3](0.62)[CoO2] have been grown in a SrCl2 flux. The ratio between the flux and raw materials strongly affected the composition of the grown crystals; that is, Sr ions were doped into the Ca site in the lattice when the flux-rich melt was used. It is found that the Sr-doping suppresses the ferrimagnetic transition temperature and decreases the magnitude of thermoelectric power coefficient, while the valence of Sr 21 ions is equal to that of Ca 21 ions. (c) 2004 Elsevier B.V. All rights reserved.