MODELING OF OPTICAL INTERFERENCE EFFECTS IN CONJUGATED POLYMER-FILMS AND DEVICES

In this paper, we model the effects of optical interference on the emi ssion properties of conjugated polymer thin films and devices. The inf luence of dielectric interfaces and metal surfaces on the radiative li fetime of the singlet exciton is investigated in a number of multi-lay er structures. We find that changing the structure can have a signific ant effect on the radiative lifetime, and we discuss the effect of thi s change on the emission spectrum as well as the measured photolumines cence efficiency. We compare the results of our model with the results of photoluminescence experiments using a number of structures.