Orientation distributions of vacuum-deposited organic emitters revealed by single-molecule microscopy
Francisco Tenopala-Carmona,
Dirk Hertel,
Sabina Hillebrandt
et al.
Abstract:The orientation of luminescent molecules in organic light-emitting diodes strongly influences device performance. However, our understanding of the factors controlling emitter orientation is limited as current measurements only provide ensemble-averaged orientation values. Here, we use single-molecule imaging to measure the transition dipole orientation of individual emitter molecules in a state-of-the-art thermally evaporated host and thereby obtain complete orientation distributions of the hyperfluorescence-… Show more
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