Two- and three-photon absorption and excitation phosphorescence of oligofluorene-substituted Ir(ppy)3

Citation:

Fan, Y. ; Ding, D. ; Zhao, D. *. Two- and Three-Photon Absorption and Excitation Phosphorescence of Oligofluorene-Substituted Ir(Ppy)3. Chem. Commun. 2015, 51, 3446-3449.

摘要:

A series of triscyclometalated iridium complexes with oligofluorene-substituted ppy ligands manifest impressive two-and three-photon absorption properties. In particular, a star-shaped complex bearing three carbazole-terminated trifluorenyl ppy demonstrates a large three-photon absorption cross section up to 81 x 10(-78) cm(6) s(2) photon(-2). In combination with optimal phosphorescence quantum yields (0.5-0.8), such iridium complexes are effective two-and three-photon excited phosphorescence emitters.

[Read Online]

See also: 2015