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US 2010/0132773 A1Published application
Graphite-based photovoltaic cells
AssigneesWisconsin Alumni Research Foundation, University of Utah Research Foundation
InventorsMax Lagally, Feng Liu
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Abstract
The present invention uses lithographically patterned graphite stacks as the basic building elements of an efficient and economical photovoltaic cell. The basic design of the graphite-based photovoltaic cells includes a plurality of spatially separated graphite stacks, each comprising a plurality of vertically stacked, semiconducting graphene sheets (carbon nanoribbons) bridging electrically conductive contacts.
Claims19
A photovoltaic cell comprising:
- (a) a first contact comprising a first electrically conductive contact material;
- (b) a second contact comprising a second electrically conductive material;
- and
- (c) a plurality of spatially separated graphite stacks bridging the first and second contacts, each graphite stack comprising a plurality of vertically stacked, semiconducting graphene sheets;
- wherein the junctions between the first electrically conductive material and the graphene sheets form Schottky barriers for electrons or holes.
2 more elements
Dependencies are inferred from the claim text.