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The thin film of poly[2-methoxy, 5-(2'-ethyl-hexyloxy-p-phenylene vinylene)] (MEH-PPV) was prepared on a glass plate by the spin coating of a chloroform solution. The mesoscopic structures and fluorescence dynamics of the MEH-PPV thin film in small domains were analyzed by AFM and picosecond time-resolved fluorescence SNOM. A wheel structure of MEH-PPV with a sub-μm to a few μm in diameter was found,...
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