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[SD] Touchscreens Made of Carbon

post #1 of 7
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The researchers at Fraunhofer have succeeded at coming up with a new material for electrodes that is on the same level as ITO and on top of it is much cheaper. Its main components are carbon nanotubes and low-cost polymers. This new electrode foil is composed of two layers. One is the carrier, a thin foil made of inexpensive polyethylenterephthalate PET used for making plastic bottles. Then a mixture of carbon-nanotubes and electrically conducting polymers is added that is applied to the PET as a solution and forms a thin film when it dries.

In comparison to ITO, these combinations of plastics have not been particularly durable because humidity, pressure or UV light put a strain on the polymers. The layers became brittle and broke down. Only carbon nanotubes have made them stable. The carbon nanotubes harden on the PET to create a network where the electrically conducting polymers can be firmly anchored. That means that this layer is durable in the long run. Ivica Kolaric, project manager from Fraunhofer Institute for Manufacturing Engineering and Automation IPA, concedes that "the electrical resistance of our layer is somewhat greater than that of the ITO, but it's easily enough for an application in electrical systems."
ITO, or indium-tin-oxide, is a great material for touchscreens, except that indium is fairly rare, and supplies will be limited in the future.

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post #2 of 7
Buy stock in those indium mines people.
    
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post #3 of 7
kind of sad that i know indium is the 49th element off the top of my head
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post #4 of 7
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Originally Posted by T3h_Ch33z_Muncha View Post
kind of sad that i know indium is the 49th element off the top of my head
Nerd!
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post #5 of 7
Quote:
Originally Posted by T3h_Ch33z_Muncha View Post
kind of sad that i know indium is the 49th element off the top of my head
Win! I've made the first 20 elements into a song in my head that helps me in chem every now and again.
post #6 of 7
Quote:
Originally Posted by T3h_Ch33z_Muncha View Post
kind of sad that i know indium is the 49th element off the top of my head
lol same... memorized all the semiconductor related elements for a special topics class i had last semester. one of the few things that apparently stuck past finals
post #7 of 7
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Originally Posted by fr0st. View Post
Win! I've made the first 20 elements into a song in my head that helps me in chem every now and again.
pfft. Be a man and memorize it by brute force.

I know the first 50 elements in order
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