Abstract
The total and the radiative rate constants for triplet-triplet exciton annihilation have been determined in pyrene single crystals. The values are γtot=(7.5±4.0)×10-12 cm3 sec-1 and γrad=(2.0±1)×10-12 cm3 sec-1, respectively. The fraction of triplet fusions leading to singlets is 0.19 × 0.02. A simple procedure is presented which allows the determination of the product αγtot where α is the ground-state-singlet-first-excited-triplet absorption coefficient of the material.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 6038-6042 |
| Number of pages | 5 |
| Journal | Physical Review B |
| Volume | 8 |
| Issue number | 12 |
| DOIs | |
| State | Published - 1973 |
ASJC Scopus subject areas
- Condensed Matter Physics