| 초록 |
Excited-state charge-transfer complexes (exciplexes) play very important roles in organic photonic devices such as organic light emitting diodes or organic photovoltaics as intermediate for triplet harvesting using fluorescent molecules or for charge generation, respectively, so that they eventually act as a key factor determining the device performance. However, their movement or diffusion has been neglected despite its influence on device performance due to the lack of apparent charge-transfer absorption. Here, we clearly demonstrate, based on the analysis of transient photo-luminescence, that the exciplexes move via energy transfers (ETs) from exciplex donors to exciplex acceptors and the ETs takes place via the Dexter mechanism. |
