Near infrared absorbing polymers for electronic applications

The present invention relates to polymers comprising repeating units of the formula or and their use as organic semiconductor material in organic electronic devices, especially in organic photovoltaics (solar cells) and photodiodes, or in a device containing a diode and/or an organic field effect tr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FLORES, JEANARLES, WELKER, MATTHIAS, TURBIEZ, MATHIEU G. R, CHEBOTAREVA, NATALIA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON ELECTRICITY MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to polymers comprising repeating units of the formula or and their use as organic semiconductor material in organic electronic devices, especially in organic photovoltaics (solar cells) and photodiodes, or in a device containing a diode and/or an organic field effect transistor. The polymers according to the present invention show high absorption in the wavelength range above 1000 nm. A particularity of the polymers is their relatively high lying LUMO associated with a very low band gap, which allows them to provide high short-circuit current (Jsc) when used as photoactive material in combination with commercial C 60 / C 70 fullerene derivatives in solar cells or photodiodes.