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At now touch screen technology is very identical by smartphone, including tablet. if at first still use stylus pen, now enough by end of finger, more comfort and accurate do control the operation with screen.

But modern touching still shadow by anxiety of limitation raw material. Electrode material thin wafer which made from Indium-Tin-Oxide (ITO)is an expensive element and limited. of course this material is ideal for touch screen but by Indium deposit in this world is limited, be anxious in long term the gadget electronic maker will depend on ITO price from supplier.

That's reason of Fraunhofer Institute from Germany moved to find substitute technology cheaper and easy to find the raw material. Thus the electronic price is not depend on that strategic metal. The researcher Fraunhofer success find the substituen material compatible with ITO. The main component is Carbon nanotube and cheap polymer. This electrode foil consist of two layers, one as carrier in the shape of thin foil Polyethilenterephtalate (PET) which cheap, usual for plastic bottle and then combination of carbon nanotube and conductor electric polymer added by PET as solvent and make thin film when dry.

Carbon nanotube have function to make layer of plastic combination stable, so that resist to moisture,pressure, and Ultra violet light which make brittle that polymer.Carbon nanotube to harden  in PET and make a net in order to the layer durable.