Abstract
The fluorescence efficiency of tetracene single crystals may be enhanced by as much as 38% in a magnetic field H>2000 G. The enhancement is anisotropic with respect to the orientation of H in the ab plane. It is shown that a magnetically sensitive coupling of singlet states to a double-triplet-exciton state (T1T1) at 2.40 eV is an important channel for radiationless decay in crystalline tetracene above 160°K.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 593-596 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 22 |
| Issue number | 12 |
| DOIs | |
| State | Published - 1969 |
ASJC Scopus subject areas
- General Physics and Astronomy