Laser photolysis studies of the photoinduced production of ion radicals in polymers |
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Authors: | Uri Lachish David J. Williams Robert W. Anderson |
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Affiliation: | Xerox Webster Research Center, Webster, New York 14580, USA |
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Abstract: | N2-laser flash photolysis measurements of poly (N-vinylcarbazole) (PVCz) and N-isopropylcarbazole (NIPC) with p-dicyanobenzene (DCNB)_in dimethylformide (DMF) show an excitation intensity dependent quantum yield for for ion-radical production. The transient absorbance associated with the ion radical species together with light intensity dependent fluorescence decay curves demonstrate that excitation annihilation processes can compete effectively with ion-radical formation at high excitation intensities in this polymer. |
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