Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10566939 | Organic Electronics | 2011 | 6 Pages |
Abstract
⺠Strong triplet exciton lifetime stabilization in the fluorescent host/guest systems F8BT/MEH-PPV and Alq3/DCM is shown, in comparison to the pristine materials. ⺠A waveguide structure is used for highly sensitive measurements of triplet absorption at room temperature in amorphous thin films. ⺠Triplet-triplet annihilation rates of 10â12 cm3 sâ1 for the pristine materials down to 10â15 cm3 sâ1 for Alq3/DCM were determined. ⺠The significantly longer triplet lifetime in the host/guest systems is attributed to a substantially lowered mobility of the localized triplet excitons.
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Physical Sciences and Engineering
Chemistry
Chemistry (General)
Authors
Marcus Lehnhardt, Thomas Riedl, Torsten Rabe, Wolfgang Kowalsky,