30 Oct '13, 5am

Energy Storage On Silicon Chips — New Supercapacitor Creates Interesting Possibilities For Solar Cells: .pw...

Energy Storage On Silicon Chips — New Supercapacitor Creates Interesting Possibilities For Solar Cells: .pw...

This allowed the researchers to create surfaces with optimal nanostructures for supercapacitor electrodes, but it left them with a major problem. Silicon is generally considered unsuitable for use in supercapacitors because it reacts readily with some of the chemicals in the electrolytes that provide the ions that store the electrical charge. With experience in growing carbon nanostructures, Pint’s group decided to try to coat the porous silicon surface with carbon. When the researchers pulled the porous silicon out of the furnace, they found that it had turned from orange to purple or black. When they inspected it under a powerful scanning electron microscope they found that it looked nearly identical to the original material but it was coated by a layer of graphene a few nanometers thick.

Full article: http://cleantechnica.com/2013/10/30/energy-storage-silico...

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