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Thermal-delayed fluorescence of pyromellitic dianhydride—anthracene trap in charge-transfer pyromellitic dianhyride—phenanthrene host crystal

✍ Scribed by B. Kozankiewicz


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
328 KB
Volume
173
Category
Article
ISSN
0009-2614

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✦ Synopsis


Thermal-delayed fluorescence of pyromellitic dianhydride


📜 SIMILAR VOLUMES


The origin of delayed fluorescence in ch
✍ B. Kozankiewicz 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 382 KB

The temperature dependence of emission spectra and their decay parameters for pyromellitic dianhydride-phenanthrene chargetransfer crystals have been investigated between 1.7 and 300 K. It has been established that the delayed fluorescence originates from triplet-triplet annihilation at temperatures

Kinetics of the emission in the charge-t
✍ B. Kozankiewicz 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 397 KB

The temperature dependence of fluorescence, phosphorescence and delayed fluorescence intensities and decay times were studied for the charge-transfer crystal of pyromellitic dianhydride-phenanthrene, between 5 and 300 K. A kinetic model which describes the behaviour of emission of this crystal is pr

Migration of electronic excitation energ
✍ B. Kozankiewicz; J. Al-Abbas; J. Prochorow 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 618 KB

Singlet and triplet exciton energy migration in the charge-transfer crystal of pyromellitie dianhydride-phenanthrene, undoped and doped with anthracene (10-4-10-2 M/M), have been studied in the 5-300 K temperature range. At low temperatures singlet and triplet excitons are self-trapped. They become