In this manuscript, non-classical nonvertical triplet acceptors are proposed as a promising class of efficient triplet scavengers for future solid-state electrically pumped organic lasers. Triplet excitation scavenging is investigated in polymer films of polyfluorene, a prospective material for the fabrication of thin-film organic lasers. Two dopant molecules, cyclooctatetraene (COT, a nonvertical triplet acceptor) and anthracene (a vertical triplet acceptor), are studied and the occurrence of anomalous nonvertical triplet energy transfer in solid conjugated polymer films is demonstrated for the first time employing COT.

Date Published: 27 August 2009
PDF: 9 pages
Proc. SPIE 7415, Organic Light Emitting Materials and Devices XIII, 74150A (27 August 2009); doi: 10.1117/12.826176

Published in SPIE Proceedings Vol. 7415:
Organic Light Emitting Materials and Devices XIII
Franky So; Chihaya Adachi, Editor(s)