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- W2091737107 abstract "Time resolved studies on films and solutions of phenylated poly (phenylene vinylene) s (P-PPV) were performed under irradiation with light pulses of 150 μJ energy and 351 (355) nm wavelengths. We observed photoconductivity of non-oriented films of polymers and oligomers by Auston switch technique. All samples show a picosecond and a nanosecond decay component of the transient conductivity, the estimated mobility was more than one order of magnitude higher than the stationary value. By ps excite- and probe-technique broad transient absorption bands in the visible and NIR were observed after excitation with 6 ps UV light pulses. The decay kinetic alters systematically with the wavelengths. It contains a fast (<200 ps) and a slow (≈ns) component. We explain the wavelength dependent kinetics as a superposition of the spectra of two absorbing quasi-particles. From the similarity of transient absorption and conductivity kinetics we conclude that the transient spectra are caused by the charge carriers." @default.
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- W2091737107 date "1991-05-01" @default.
- W2091737107 modified "2023-09-25" @default.
- W2091737107 title "Picosecond studies of photoconductivity and photoinduced absorption of phenylated poly (phenylene vinylene) s" @default.
- W2091737107 cites W1978206112 @default.
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- W2091737107 doi "https://doi.org/10.1016/0379-6779(91)91627-m" @default.
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