Triplet exciton stimulated current pulses in anthracene crystals
β Scribed by H.P. Braun; M.E. Michel-Beyerle
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 352 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0009-2614
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π SIMILAR VOLUMES
The phosphorescence and delayed fluorescence associated with triplet exciton trapping in crystalline anthracene have been used to demonstrate the physical nature of many of the traps and to determine their depth.
Delayed and prompt 5uorescekce spectra and delayed fluokscenctt decay data far ~0'5-106 M/M crystals of anfltracene in phenanthrene are report&d\* It is shown that these data indicate that a heterogeneous (host-dopant) annihiiation process takes place which produces the excited singlet state of -tie
The rate constants of triplet-triplet annihilation were measured in anthracene single crystals with various degrees of damage. It was found that, as with the singleexcitonic triplet decay rate, the doubleexcitonic triplet decay rate is severely affected by the presence of crystal defects. The experi