Title of article
Picoseconds time resolved photoinduced absorption by infrared active vibrations as a probe for charge photogeneration in MEH-PPV/C60 composites
Author/Authors
Mizrahi، نويسنده , , U. and Shtrichman، نويسنده , , I. and Gershoni-Baruch، نويسنده , , D. and Ehrenfreund، نويسنده , , E. and Vardeny، نويسنده , , Z.V.، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 1999
Pages
4
From page
1182
To page
1185
Abstract
We have applied a visible pump mid-infrared probe picosecond time resolved technique, in order to study the photogeneration of charges in MEH-PPV/C60 composites. The photoinduced infrared active vibrations on the polymer chains have been used as a direct measure for the photogenerated charges. We have found that, within our time resolution of ⋍60 ps, polarons are photogenerated on the MEH-PPV chains with a quantum yield of the order of 5%.
Keywords
picosecond time resolved IR spectroscopy , Photoinduced absorption , PPV and derivatives
Journal title
Synthetic Metals
Serial Year
1999
Journal title
Synthetic Metals
Record number
2072573
Link To Document