1 June 1991 Structure of poly(p-hydroxystyrene) film
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Pyrene-doped poly(p-hydroxystyrene) (PHST) thin films prepared by spin- coating method are studied by time-resolved total-internal-reflection fluorescence spectroscopy. We observed inhomogeneity such as a concentration gradient of doped pyrene molecules and a gradient of polarity (hydrophobicity), and also the existence of isolated pyrene molecules. Stable ground-state dimers of pyrene are found in surface, bulk, and interface layers of a PHST film. These features cause the complicated rise and decay of fluorescence. These results also depend upon the preparing process such as the baking condition.
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Minoru Toriumi, Minoru Toriumi, Masatoshi Yanagimachi, Masatoshi Yanagimachi, Hiroshi M. Masuhara, Hiroshi M. Masuhara, "Structure of poly(p-hydroxystyrene) film", Proc. SPIE 1466, Advances in Resist Technology and Processing VIII, (1 June 1991); doi: 10.1117/12.46394; https://doi.org/10.1117/12.46394


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