[constantreverie]

Hello,
I am trying to find a rigid material that conducts millivolts that is non-metallic. Does anyone know of any? I would love to know.
It's an idea for pen for ipad. it uses an electrical charge from your body to register the touch on the screen.
Any thoughts?

[Borek]

material that conducts millivolts

No idea what you mean. Conductivity is a property linked with current, not with potential.

[constantreverie]

I suppose sensitivity, to be honest, its a question a friend has, so I am not 100% what he means, that is the information I have. Thanks for trying though.

[Enthalpy]

Some plastics conduct electricity, like polyacetylene. Rather a research topic as far as I know.

Available commercially, cheap: plastics heavily loaded with graphite powder. Not as good as a metal, but similar to the human body. Have a look at Matweb, Goodfellow, and most plastics producers.

[curiouscat]

Hello,
I am trying to find a rigid material that conducts millivolts that is non-metallic.

Composites used for aircraft are conductive, I think.

[Hunter2]

Or it can be used conductive Polymers, like Polythiophene, Polypyrrole, Polyeethine, etc.