The invention provides liquid compositions comprising conductive carbon particles and/or carbon nanoparticles, a thickening agent, and a solvent. The carbon nanoparticles are preferably a mixture of graphite nanoplatelets and carbon nanotubes and the thickening agent is preferably a cellulose derivative. The liquid ...

The invention provides electrically conductive films containing graphene nanoplatelets packed in asubstantially Apollonian manner. The films may also comprise carbon nanotubes in order to improve their conductivity. The invention also provides liquid compositions that can be used to print the electrically conductive...