Three Nobel prizes have been awarded recently (1996, 2000, 2010) for the discovery/research on various high carbon content structures, namely fullerenes, graphene, and polyacetylene.  Graphene and polyacetylene are interesting for many possible electronic applications.  While graphene by definition is a single molecular sheet of graphitic structure, and interesting physical properties, the polyacetylenes and doped polyacetylenes, can be prepared in more convenient forms for industrial electronic applications. 
However, it has been determined that except for very limited applications, these polymers are quite sensitive to reactions with air, water, and optical photons.  Hence, their inherent electrical conductivities are usually significantly time dependent. They are also typically very insoluble and have no solid/liquid transition points. In the end, doped polyacetylenes found limited use as conductive powders and additives, however they are not highly suitable for semiconductor or optoelectronic applications.  Graphene and very thin graphite layers (i.e. graphene layers) in general are very difficult to isolate, and when feasible, the surface area of the samples are usually at the square micron level.