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- W2094018707 abstract "Exciton delocalization in the conjugated polymer poly(p-phenylene vinylene) (PPV) is investigated using temperature-dependent spectroscopy. As the temperature is lowered, the steady-state absorption and fluorescence spectra indicate increased electronic conjugation and exciton delocalization. Femtosecond transient absorption measurements at 20 and 290 K over the wavelength range 520–650 nm provide evidence that such delocalization occurs within the first 10 ps after photoexcitation. Comparison of the 20 and 290 K data, along with anisotropy studies, suggests that vibrational cooling plays a significant role in the spectral dynamics observed in PPV on this timescale." @default.
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- W2094018707 date "2001-07-01" @default.
- W2094018707 modified "2023-09-27" @default.
- W2094018707 title "Temperature-dependent exciton dynamics in poly(p-phenylene vinylene) measured by femtosecond transient spectroscopy" @default.
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- W2094018707 doi "https://doi.org/10.1016/s0009-2614(01)00657-1" @default.
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