Triplet-state and singlet oxygen formation in fluorene-based alternating copolymers

Authors :: Fonseca, S.M.
Pina, J.
Arnaut, L.G.
De Melo, Seixas, J.
Burrows, H.D.
Chattopadhyay, N.
Alcacer, L.
Charas, A.
Morgado, J.
Monkman, A.P.
Asawapirom, U.
Scherf, U.
Edge, R.
Navaratnam, S.
Source :: Journal of Physical Chemistry B. April 27, 2006, Vol. 110 Issue 16, p8278, 6 p.
Publication Year :: 2006
Abstract: A study was conducted about triplet-state formation and intersystem crossing in an A-alt-B series of fluorene copolymers using flash photolysis and pulse radiolysis-energy transfer. Fluorene-thiophene copolymers PFaT and PF3T, the triplet energies are closer to those of thiophene oligomers, indicating that there is significant conjugation between fluorene and thiophene units but also that there is a more localized triplet state than with the homopolymers.

Subjects :: Fluorine compounds -- Chemical properties
Photolysis -- Methods
Chemicals, plastics and rubber industries

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