Poly photoexcitation spectroscopy

The purpose of this chapter was to report on the state of the art in vibrational spectroscopy in the field of poly-conjugated materials. The intent was to go beyond the approach of technique-oriented spectroscopists to show nonspecialists the large quantity of unique information that can be derived from optical spectra. Many examples have been presented as a guide to the nonspecialists on how to use spectroscopic data. Classical vibrational chemical correlations have been shown to be almost useless for deriving structure-property correlations. A large amount of new physics has been developed for the understanding of the peculiar spectra of these materials in the pristine, doped, and photoexcited states. 

V m through the FET dielectrics. This effect can also be observed in other device architectures, such as OLED metal layers sandwiching ladder-type poly(paraphenylene). The exact attribution of the luministor behavior will deserve further investigation in future research. This will have to include the assessment of the radiative and non-radiative decay rates after photoexcitation in the active polymer nanofibers, which is possible by coupling absolute quantum yield measurements and time-resolved PL spectroscopy. 

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