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Efficient Charge Separation in a Smooth‐TiO 2 /Palladium‐Porphyrin Bilayer via Long‐Distance Triplet‐State Diffusion
Author(s) -
Kroeze J.E.,
Savenije T.J.,
Warman J.M.
Publication year - 2002
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(20021203)14:23<1760::aid-adma1760>3.0.co;2-b
Subject(s) - materials science , porphyrin , palladium , bilayer , diffusion , chemical physics , charge (physics) , photochemistry , nanotechnology , membrane , organic chemistry , catalysis , thermodynamics , quantum mechanics , chemistry , physics , biology , genetics
Long‐distance triplet state diffusion in a TiO 2 /palladium‐porphyrin bilayer (see Figure) results in efficient photo‐induced charge separation. The larger efficiency for the palladium porphyrin compared with the metal‐free or zinc derivatives is attributed to the strong spin–orbit coupling in the former, resulting in substantial singlet character of the triplet state.