Picoseconds time resolved photoinduced absorption by infrared active vibrations as a probe for charge photogeneration in MEH-PPV/C60 composites
作者： U. Mizrahi , I. Shtrichman , D. Gershoni , E. Ehrenfreund , Z.V. Vardeny
DOI: 10.1016/S0379-6779(98)00316-6
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摘要: Abstract We have applied a visible pump mid-infrared probe picosecond time resolved technique, in order to study the photogeneration of charges MEH-PPV/C 60 composites. The photoinduced infrared active vibrations on polymer chains been used as direct measure for photogenerated charges. found that, within our resolution ⋍60 ps, polarons are MEH-PPV with quantum yield 5%.
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