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MIT Develops Quantum-Dot OLEDs

Posted by timothy on from the cool-wallpaper dept.

deglr6328 writes "Researchers at MIT have developed a new type of Organic Light emitting Diode (OLED) using Cadmium Selenium Quantum Dots as the electron-hole recombination layer. It is widely believed that the next generation of flexible flat panel display technologies will be self luminous (non-backlit) organic light emitting diodes. However, the efficiency and lifespan of both small molecule and polymer type OLEDs, to date, has been poor for small wavelength emitting compounds. Using quantum dots as the emissive layer in OLEDs potentially solves both of these problems since they are inorganic and won't degrade, and they have a theoretical maximum quantum efficiency of near 100%. Mmmmm ... can't wait to buy my first roll-up display!"

4 of 158 comments (clear)

  1. Cool... but when? by httpamphibio.us · · Score: 5, Insightful

    Haven't roll-up displays been "two years away" for about seven years now?

    I love the concept... but really, shouldn't we have at least one low quality, high priced, first generation consumer product by now?

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    sig.
  2. Short lifespan by BESTouff · · Score: 5, Insightful
    However, the efficiency and lifespan of both small molecule and polymer type OLEDs, to date, has been poor for small wavelength emitting compounds

    Apparently these displays would have a short lifespan. We would then have disposable screens. That seems a perfect consumer target: cheap, glowing, quickly obsolete.

    1. Re:Short lifespan by Emperor+Shaddam+IV · · Score: 5, Insightful

      We would then have disposable screens

      With Cadium. Wonderful for the water supply and growing plants. My liver and kidneys can hardly wait. I could always use some more heavy metals in my diet.

  3. For those miss the point by akincisor · · Score: 5, Insightful

    The point of the article is that they have managed to use an inorganic layer in between just two organic layers and produce a magnitude of light equivalent to earlier efforts with 20 layers. These things have 25 times(!) the power efficiency. This might also be the first commercial application of quantum dots.