Organic photovoltaic devices comprising fullerenes and...

Details Organic photovoltaic devices comprising fullerenes and... Organic photovoltaic devices comprising fullerenes and...

H - Electricity

01

L

H01L 51/42 (2006.01)

Patent

CA 2655135

Photovoltaic cells comprising an active layer comprising, as p-type material, conjugated polymers such as polythiophene and regioregular polythiophene, and as n-type material at least one fullerene derivative. The fullerene derivative can be C60, C70, or C84. The fullerene also can be functionalized with indene groups. Improved efficiency can be achieved.

La présente invention concerne des cellules photovoltaïques contenant une couche active qui renferme, à titre de matériau de type p, des polymères conjugués tels que du polythiophène ou du polythiophène régiorégulier, et à titre de matériau de type n au moins un dérivé de fullerène. Le dérivé de fullerène peut être en C60, C70, ou C84. Le fullerène peut également être fonctionnalisé avec des groupes indène. Il est possible d'obtenir une meilleure efficacité.

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