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Electrically Conductive Plastic Polymer

AustinSlacker writes to mention Fox news is reporting that a Dutch researcher is announcing a breakthrough in plastics. A new way of rebuilding plastics could allow them to conduct electricity just as well as the silicon wafers currently used in electronic gadgets. "Prins discovered that in plastics, the movement of electric charges was mainly hindered by the shape of the polymer, the chain-like molecular structure [that is] the basis of each kind of plastic. Prins extended the work of a German group that had reshaped a polymer to form a ladder-like structures. By bombarding the specially developed plastic with electrons from a particle accelerator, she was able to study rapid electrical reactions and demonstrate the new plastic's ability to conduct electricity much better than regular plastic and as well as silicon chips."

30 of 118 comments (clear)

  1. let me know when copper is an insulator. by swschrad · · Score: 4, Interesting

    conductive plastic actually has some uses, but being a larger molecule than molecular silicon or germanium, doesn't make it look like the next New Chip Substrate.

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    1. Re:let me know when copper is an insulator. by friedman101 · · Score: 2, Informative

      A bigger barrier to entry might be that this conducting plastic cannot function as a semiconductor. Lots of materials conduct electricity, lots insulate, few can do both.

    2. Re:let me know when copper is an insulator. by d0rp · · Score: 2, Funny

      PS: Just be careful not to get electrocuted by your t-shirt (don't worry, I don't see a market for solar-powered underwear). What about solar-powered swimsuits?
    3. Re:let me know when copper is an insulator. by theshowmecanuck · · Score: 2, Informative

      While it's used to make semi-conductors, silicon on its own can't conduct at normal (human) working temperatures. Due to its negative temperature coefficient of resistance it will be able to effectively conduct at temperatures over roughly 1200C, but not at room temperature. You need to highly purify and dope the silicon in order to get it to produce semi-conductors that function at 'normal' working temperatures (which I don't think include 4 digit temperatures ;-) ). So maybe depending on what they do to the plastic, it could have the same properties as doped silicon.

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    4. Re:let me know when copper is an insulator. by I+Like+Pudding · · Score: 2, Funny

      What about solar-powered swimsuits?


      Is that your carbon offset or are you just happy to see me?
    5. Re:let me know when copper is an insulator. by DRAGONWEEZEL · · Score: 2, Interesting

      Except that you can layer plastics easily, create meshes like cloth, and for instance your horizontil strands could be electrical while your vertical fibers could be of a non conducting polymer, like POLYESTER or something.

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  2. Plastic electronics don't have 2 be supercomputers by DRAGONWEEZEL · · Score: 4, Interesting

    The real benefit is things renewed potential for things like sensors, and smart clothing.

    Maybe it will make short but wide networks possible, who knows.

    I think mostly though, that it could be used to replace the small electronic devices that get used everyday that you don't think of from a techies perspective. Automotive pieces certain types of switches, small controllers, toys, medical devices, spoilage detectors for food/ food processing etc. These would be the key industries I can think of off the bat

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  3. As conductive as silicon? by kmac06 · · Score: 3, Insightful

    Silicon is not a good conductor. The advantage it can be doped to make it as good of a conductor as necessary (which also allows you to make transistors out of it). I doubt this plastic can be doped...

    Also, why not run a test current through it to measure the conductivity instead of using an accelerator?

  4. Computer of the future is near by Jtheletter · · Score: 4, Funny

    Ok, so in the last couple years or so we've seen the devlopment of: 1) electrically conductive plastics 2) transparent (when off) OLED-based displays, 3) transparent plastic-based circuits, 4) clear plastic-based batteries, 5) multitouch input capability, and 6) light-based data transfer methods and holographic data storage.

    Within 10 years I hope to see all of these technologies combined into a geek fantasy device: a clear plastic tablet computer about the size of a pad of paper. Not to mention the hojillion other applications that suddenly become possible when you can embed a complete computer with I/O in a transparent medium: HUDs for glasses, store windows that are also dynamic advertising surfaces, image processing and data overlay on windshields (e.g. thermal or IR image data to augment the scene in poor visibility), etc.
    I especially like the plastic battery concept since in theory you could make certain structural elements also function as you battery so there is no need for a bulky power source attached to the device, this would work well for the glasses display - the frames themselves could be the battery and/or processor. Although we'd definitely want to make sure there aren't any exploding battery incidents like with recent laptops.

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    1. Re:Computer of the future is near by stratjakt · · Score: 5, Funny

      Within 10 years I hope to see all of these technologies combined into a geek fantasy device: a clear plastic tablet computer about the size of a pad of paper.

      Speak for yourself.

      My fantasy device allows me to seduce any supermodel of my choosing, has rocket engines so it can fly, and 20 dollar bills come out the exhaust. It is also made of solid space gold (its not heavy) and the horn plays dixie and it sounds AWESOME!

      That or an iPod.

      --
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    2. Re:Computer of the future is near by LiquidCoooled · · Score: 2, Funny

      Are the suicide booths for the folks upset after having crufty Y front adverts subliminally beamed into their head overnight?

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    3. Re:Computer of the future is near by peragrin · · Score: 2, Informative

      You do realize mercedes and BMW are already testing that tech. http://www.spectrum.ieee.org/print/3043

      new Mercedes have a short range radar built into the cruise control. So if you come up behind a car moving slower than yourself it taps the brakes to slow you down to the speed of a car in front of you. it's not perfect if the vechicle is moving to slow or not moving you will sill hit it, but it does work say comingup on someone doing 50 while your doing 70.

      In the 1970's Mercedes where one of the first companies shipping air bags standard. now they are shipping smarter cruise controls.

      Those sci-fi ideas are slowly becoming reality.

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  5. Original release by mattr · · Score: 2, Insightful

    Waging the good fight against dumbed-down science and research by press release, your masked hero finds.. this.

    Mobile phones can soon survive being dropped

    Good because you cannot get a patent after publication? Or bad because.. oh phooey. This might be by the same person.

    * In unrelated news is anyone going to be at ETC2007? Neal Stephenson talk and a new hires cave called C6 by Iowa State! Someone video the thing!

  6. Neat! by drewzhrodague · · Score: 2, Interesting

    That's neat! How long until we can print circuits with something like an ink-jet?

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    Zhrodague.net - I do projects and stuff too.
    1. Re:Neat! by eheldreth · · Score: 2, Informative

      Xerox PARC has had that tech for years now(since like 2002 or 2003) and a company named T-Ink is working with major company's producing everything from fisher price play sets to McDonald's place mats and even inflatable radios.' Click on the partners tab: T-Ink

      --
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  7. Re:Bad news, good news by apocalysque · · Score: 3, Informative

    actually, polymers are inherently more flexible than other plastics. this may actually make some products more durable. think of it this way: glass = silicon, rubber = polymer. which one breaks easier?

    this misses the point entirely though, the main advantage is that the manufacturing process would be theoretically less expensive. much of the cost and difficulty with silicon chips today is involved with the manufacture/conditioning of the silicon wafers. plastics are very cheap these days.

  8. Possible use in solar cells? by Anonymous Coward · · Score: 3, Interesting

    If this type of plastic can be a conductive substance similar to silicon and costs less to produce, then this could be a huge advantage to those advocating the use of solar power. Currently one of the largest costs in creating solar cells is the high price for silicon which is used in them. The use of a cheap plastic polymer with properties similar to silicon might make solar cells much more reasonable to purchase for a lot of people.

    1. Re:Possible use in solar cells? by DerangedAlchemist · · Score: 2, Informative

      Polymer solar cells have already been made, there are some efficiency issues but they are incredibly cheap. The problem with them is that they disintegrate very quickly. As far as I understood, this was the real problem with conducting polymers of all sorts (the thiophenes, etc.) as far as I know. Anyone know the current status of this?

  9. duh by Bill,+Shooter+of+Bul · · Score: 4, Funny

    If you had a choice between using a particle accelerator or a power supply, which would you use?

    I hope to convince my office to move to the grounds of fermi lab, so I can have the choice as well.

    Just have to remember to switch to conventional power supply before they start the experiments with anti matter.

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    Well.. maybe. Or Maybe not. But Definitely not sort of.
  10. Re:as well as silicon? by Anonymous Coward · · Score: 3, Insightful

    Why dont you take a look at how silicon wafers for microchip production, and how solar panels are produced, and just how environmentally hostile it is.

    Or just bloviate with your 8th grade knowledge of science.

    Carbon and Oxygen are everywhere too! Why all the crying about CO2 in the atmostphere?

  11. Electrical Conductive Plastic Already Exists by docinthemachine · · Score: 2, Insightful

    http://www.docinthemachine.com/ reported in January on the development of a product called Electriplast that is a resin based electrically conductive plastic- and that is commercially available. I believe it has potential in the medical device market as well as consumer electronics. You can read more about the product at : http://docinthemachine.com/2007/01/08/electriplast / "Electriplast is a highly conductive recipe that can be molded into virtually any shape or dimension associated with the range of plastics, rubbers and polymers. CES chose this technology with a 2007 Innovation honoree for enabling technologies. Now it's just a matter of convincing manufacturers to look at the small medical tool market and not focus on its current #1 use- next generation cell-phone antenna."

  12. on the more practical side: ESD and RF emissions by gemtech · · Score: 2, Interesting

    If it is only partially conductive, the ESD (Electro-Static Discharge) properties would get my attention (safe discharge paths for cheap). And if it could shield the circuits from emissions and susceptibility, it would be a winner in my book.

    --
    Insanity: doing the same thing over and over again and expecting different results. Albert Einstein
  13. Oh good by ObligatoryUserName · · Score: 2, Insightful

    I don't think we had enough uses for oil yet.

    1. Re:Oh good by ductonius · · Score: 2, Insightful

      Strong, flexible plastics replaced metal for many products because plastic is much cheaper to produce. I would wager that conductive plastics would actually decrease the use of oil by generally reducing the amount of resources it takes to produce an electronic product.

      The amount of fuel unused in mining and refining of aluminum and copper would probably cover the increased use of natural gas by electronic manufacturers.

      We may think of oil as expensive, but plastic is still cheaper than metal and has a smaller environmental impact.

  14. Invented by a girl... by Fjan11 · · Score: 2, Informative

    Insert snide male chauvinist remarks here. For extra points mention plastic and conductivity.
    By the way, she's not bad looking at all, picture (and phone number!) here: http://www.tudelft.nl/live/pagina.jsp?id=40a4cfdf- 683e-4db7-9675-c5c57399329c&la

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  15. Re:Bad news, good news by maxume · · Score: 2, Informative

    Aren't plastics a subset of polymers?

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    Nerd rage is the funniest rage.
  16. Some perspective on conductive polymers by gt384u · · Score: 4, Informative

    So I get the sensation that just like everywhere else on Slashdot, a lot of people are out of their depth when it comes to this topic. For some background, might I suggest reading about the work of the three men who shared the Nobel Prize in Chemistry in 2000 for their work in conductive polymers. These materials are incredible in a myriad of ways, but require a nontrivial understanding of materials to really get it.

  17. Myomer? by Fireye · · Score: 2, Funny

    Electrically conductive polymer leads to muscle-type plastic strads, which OBVIOUSLY in turn leads to the development of Battlemechs. So, when can I place my order for a Jenner, or maybe a nice big Battlemaster?

  18. From another article by phorm · · Score: 2, Funny

    by measuring the microwave absorption ... This avoided the need to use electrodes. Such electrodes often disrupt the measurement.

    According to This article they avoided standard meters to gain better measurements.

  19. Little bitty test prods ... by Ungrounded+Lightning · · Score: 2, Interesting

    ... why not run a test current through it to measure the conductivity instead of using an accelerator?

    She did.

    But hooking up molecule-sized test prods to an ohmmeter was a pain.

    So she used a particle accelerator to inject the electrons. (TFA doesn't say what else she used to measure the current.)

    I've contemplated using scanning electron beams for electrical measurements. Say: a low-energy electron beam for the negative supply, a high-energy one (creating more secondary electrons than injected electrons) for the positive, and a third one at an energy that turns it back around near the surface (or gets sucked in, depending on voltage) for a voltage probe.

    But that's both too large and too energetic for testing single molecules of plastic.

    Going the other way and using a particle accelerator to excite some observable side-effect of conduction is quite the hack. (I'd propose giving her an award but her university already did. Waytago!)

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