𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Origin of low-temperature delayed fluorescence in cyanine dyes

✍ Scribed by Annabel A. Muenter; Walter Cooper

Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
422 KB
Volume
22
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

The delayed nuorcscence found in rigid-glass solutions of cyanine dyes is shown to result from the presence of lrace quantities of phosphorescent impurities

and not from n lorv-encrg photoionization process, as previously suggesred. For quinoline cyanine dyes, lhc predomiwnt impurities are idcnrified as quinoloncs, highly phosphorescent compounds formed by osidalive degradation of the dyes.

πŸ“œ SIMILAR VOLUMES

Low-temperature delayed fluorescence in
Low-temperature delayed fluorescence in 1,4-dibromonaphthalene
✍ J.M.J. Vankan; W.S. Veeman; R.C. Haltiwanger; P.T. Beurskens πŸ“‚ Article πŸ“… 1983 πŸ› Elsevier Science 🌐 English βš– 409 KB

The occurrence of low-temperature triplet-triplet annihilation in 1.4-dibromonaphthalene is strongly correlated with the presence of molecules of the isomer 1,Sdibromonaphthalene. The main part of the delayed fluorescence ori@ates from thii guest molecule. The crystal structure of 1,Sdibromonaphthal

Low-temperature luminescence spectrum of
Low-temperature luminescence spectrum of crystalline biquinoline: trap phosphorescence and delayed enlimer fluorescence
✍ P. Mitra; D.J. Graham πŸ“‚ Article πŸ“… 1981 πŸ› Elsevier Science 🌐 English βš– 289 KB

A study of the low-temperature luminescence of neat crystalline 2,2'-biquinoline (BQ) is presented. The 2 K spectrum is comprised of intense, broad components in the 380-500 nm region, with less inte..lse, structured bands in the 500-575 nm tee.ion. Both bands exhibit different degrees of metastabil

The origin of delayed fluorescence in ch
The origin of delayed fluorescence in charge-transfer crystals: pyromellitic dianhydride-phenanthrene crystal
✍ B. Kozankiewicz πŸ“‚ Article πŸ“… 1987 πŸ› Elsevier Science 🌐 English βš– 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