Novel star-shaped subporphyrins with monodisperseoligocarbazolearms were prepared by using pyridine-tri-N-pyrrolylborane as a template. It was found that photoinduced energy transfer took place from the oligocarbazolearms to the subporphyrin core, and the energy transfer efficiency decreased with an increase in the number of carbazole units in the arms. These subporphyrins could emit intense yellow-green