Aug 21, 2013

Researchers from Michigan Technological University developed a new "3D Graphene" material that can be used to replace platinum used in dye-sensitized solar cells (DSSC). The new material is cheap and easy to make, and using it as an electrode the researcher fabricated a DSSC cell that has an energy efficiency of 7.8% (conventional platinum-electrode based solar cell achieve 8%).

To synthesize this new material, the researchers combined lithium oxide with carbon monoxide in a chemical reaction that forms lithium carbonate (Li2CO3) and the honeycomb graphene. The Li2CO3 helps shape the graphene sheets and isolates them from each other, preventing the formation of garden-variety graphite. It's easy to remove the Li2CO3 particles using acid.

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Versarien - Think you know graphene? Think again!Versarien - Think you know graphene? Think again!