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.
STATEMENT OF GOVERNMENT RIGHTS
This invention was made with United States government support awarded by the following agency: Department of Energy under grant number DE-FG02-03ER46028. The United States government has certain rights in this invention.