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The monolayers of pure C 60 derivative (C60-COOH) are stable on the surface of pure water subphase and poly-phenylene-vinylene derivative (PPV) solution, respectively. The composite ultrathin film of PPV and C60-COOH was successively fabricated on the quartz and mica substrate by using Langmuir–Blodgett technique. X-ray photoelectron spectrometry (XPS) measurements show that the PPV is embedded...
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