Energy transfer from inorganic excitons to naphthalene in organic-inorganic hybrid quantum-well materials

摘要

Phosphorescence from a triplet excited state in organic materials has been extensively studied because of its high potentiality to increase the efficiency of organic light emitting diodes. In this paper, we report strongly enhanced phosphorescence from the triplet state of naphthalene molecules which are doped into an organic-inorganic hybrid quantum-well material. The enhanced phosphorescence is caused by energy transfer from excitons in the inorganic well layer to the triplet state of naphthalene molecules. We investigate the dynamics of the energy transfer and find out that the mechanism is Dexter-type transfer.