The purpose of this project is the synthesis of dihydrosilole and its optical characterization for their applications. Dihydrosilole was synthesized from the reduction reaction of either dichlorosilole or chlorohydrosilole with lithium aluminium hydride. The reaction yield for the dihydrosilole through the latter method was higher. The optical characteristics and AIEE effect of dihydrosilole nanoaggregates was investigated for the purpose of increasing the photoluminescence efficiency. Photoluminescence efficiency of dihydrosilole nanoaggregates increased about 100 times compared to that of molecular state.