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External Electric Field Effects on Emission of a Mixture of Tetraphenylporphyrin and Fullerene Doped in a Polymer Film
Author(s) -
Wahadoszamen MD.,
Nakabayashi Takakazu,
Ohta Nobuhiro
Publication year - 2006
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200600011
Subject(s) - tetraphenylporphyrin , chemistry , electric field , free base , excited state , fullerene , zinc , doping , photochemistry , fluorescence , polymer , base (topology) , analytical chemistry (journal) , atomic physics , optoelectronics , organic chemistry , porphyrin , optics , materials science , mathematical analysis , physics , salt (chemistry) , quantum mechanics , mathematics
In a mixture of tetraphenylporphyrin (TPP) and fullerene (C 60 ) doped in a PMMA film, fluorescence of TPP is enhanced and de‐enhanced by an electric field in zinc and free‐base compounds, respectively, indicating that the electron transfer from the excited state of TPP to C 60 is decelerated in zinc compounds and accelerated in free‐base compounds by an electric field. TPP was found to form complex upon mixing with C 60 which exhibits a broad emission in the wavelength region longer than that of the TPP emission. The complex emission is significantly quenched by an external electric field in both zinc and free base compounds, suggesting that the nonradiative decay of the excited complex is accelerated by an electric field in both cases.