Delayed fluorescence from triplet-triplet annihilation in solution. Is the T2 state involved?

✍ Scribed by W.G. McGimpsey; C. Evans; C. Bohne; S.R. Kennedy; J.C. Scaiano

• Book ID: 103025792
• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 409 KB
• Volume: 161
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(89)85096-1

✦ Synopsis

The possibility of T2 involvement in the delayed fluorescence of 9,10-dibromoanthracene ( DBA) has been investigated by studying the decrease of delayed fluorescence with the addition of 1,3_octadiene, an efficient triplet quencher with energy higher than the TI of DBA. It is concluded that the reduction of delayed emission intensity could be explained by the quenching of the T, state which mediates intersystem crossing, and that it is not necessary to invoke T2 generation via T-T annihilation.