US Patent 7544747 - Photovoltaic fullerene

http://www.freepatentsonline.com/7544747.html

This patent from Konarka Technologies teaches a composite fullerene materials that may be useful in producing flexible solar cells. Claim 1 reads:

1. A fullerene derivative, comprising a pendant cyclic ether and a fullerene comprising a number Cj carbon atoms, wherein j ranges from 50 to 250 and the pendant cyclic ether and the fullerene are spaced apart by an ester group or a ketone group.

US Patent 7351907 - Photovoltaic nanoparticles for powering flexible display

http://www.freepatentsonline.com/7351907.html

This patent from Konarka Technologies teaches an interesting solar powered flexible display device taught to be useful for store shelfs of supermarkets. Claim 1 reads:

1. A flexible display apparatus comprising: a flexible base; at least one flexible photovoltaic cell disposed upon the flexible base; and a display element disposed upon the flexible base and operably connected to the at least one flexible photovoltaic cell, wherein the at least one flexible photovoltaic cell comprises a photosensitized nanoparticle material and a polymeric linking that convalently interconnects the photosensitized nanoparticle material.