Magnetic Hyperfine Modulation of Dye-Sensitized Delayed Fluorescence in an Organic Crystal
- 14 August 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 29 (7) , 429-431
- https://doi.org/10.1103/physrevlett.29.429
Abstract
Magnetic fields were found to decrease rhodamine-—sensitized delayed fluorescence in anthracene by up to 60% at 10 mTorr. An inverse but smaller effect was found on sensitized photoconductivity. The observations are explained in terms of a magnetic-field-dependent recombination of surface electrons and injected holes, with the field scale being fixed by hyperfine interactions.
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