✦ LIBER ✦

Kinetics of the emission in the charge-transfer crystal of pyromellitic dianhydride-phenanthrene

✍ Scribed by B. Kozankiewicz

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 397 KB
Volume: 160
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(89)87570-0

No coin nor oath required. For personal study only.

✦ Synopsis

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 proposed. The temperature-dependent rate of deactivation of singlet excitons is discussed.

📜 SIMILAR VOLUMES

The origin of delayed fluorescence in ch

The origin of delayed fluorescence in charge-transfer crystals: pyromellitic dianhydride-phenanthrene crystal

✍ 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

Migration of electronic excitation energ

Migration of electronic excitation energy in the charge-transfer crystal of pyromellitic dianhydride-phenanthrene

✍ 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

Thermal-delayed fluorescence of pyromell

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

✍ B. Kozankiewicz 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 328 KB

Thermal-delayed fluorescence of pyromellitic dianhydride

Charge-transfer-absorption, CT-emission-

Charge-transfer-absorption, CT-emission- and ESR-spectroscopy with zone-refined crystals of anthracene-pyromellitic dianhydride

✍ D. Haarer; N. Karl 📂 Article 📅 1973 🏛 Elsevier Science 🌐 English ⚖ 396 KB

Generation and transport of charge carri

Generation and transport of charge carriers in the charge-transfer complex anthracene-pyromellitic-dianhydride

✍ N. Karl; J. Ziegler 📂 Article 📅 1975 🏛 Elsevier Science 🌐 English ⚖ 609 KB

Zero-phonon transitions and vibronic cou

Zero-phonon transitions and vibronic coupling in the 1:1 charge-transfer crystal anthracene-pyromellitic-acid-dianhydride

✍ D. Haarer 📂 Article 📅 1974 🏛 Elsevier Science 🌐 English ⚖ 353 KB

High resolution speclrn of the 1:l CT-crystal anthracene-pyromelljric-ni-id-di3nhydride (A.PLIDA) show nt low tcmperatures sharp structures in absorprion and in emission. We attribute these structures to a zero-phonon transition which is accompanied by vibronic satellites. The spectra yield the coup