  Sb- and Se-substituted CeOBiS2 single crystals have been successfully grown
using CsCl/KCl flux. Sb and Se substitution dependence of the superconductivity
on CeOBiS2 was investigated and the superconducting phase diagram at above 0.3
K was described. The non-linear boundary between superconductivity and
non-superconductivity was revealed.
