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New Solar Cell Sets World Efficiency Record

asoduk writes to tell us that a new world record has been set for the most efficient photovoltaic device. Topping the scale at 40.8% efficiency, the new solar cell differs significantly from the previous record holder. "Instead of using a germanium wafer as the bottom junction of the device, the new design uses compositions of gallium indium phosphide and gallium indium arsenide to split the solar spectrum into three equal parts that are absorbed by each of the cell's three junctions for higher potential efficiencies. This is accomplished by growing the solar cell on a gallium arsenide wafer, flipping it over, then removing the wafer. The resulting device is extremely thin and light and represents a new class of solar cells with advantages in performance, design, operation and cost."

20 of 299 comments (clear)

  1. Re:very cool, but... by Anonymous Coward · · Score: 4, Funny

    We'll have fusion by then. Electricity too cheap to meter ;-)

  2. When we'll have solar by Abstrackt · · Score: 5, Funny

    We will have solar energy as soon as the utility companies solve one technical problem -- how to run a sunbeam through a meter.

    --
    They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance. - Terry Pratchett
  3. Re:So... by Tubal-Cain · · Score: 3, Funny

    Just guessing here... 3-5 years.

  4. Re:sounds toxic by Stoutlimb · · Score: 4, Funny

    Unless you grind them up and snort them you're probably safe.

  5. Re:Old? by bugnuts · · Score: 4, Funny

    No, that was 40.7%. Old and busted.

    This is 40.8%. :p

  6. Re:please mirror by SnowZero · · Score: 4, Funny

    Alternatively, you can use a Fresnel lens instead of a mirror.

  7. Re:very cool, but... by Kagura · · Score: 4, Funny

    Good, we can just hook the generator up to him! :)

  8. Re:Important information missing? by SnowZero · · Score: 5, Funny

    The new cell produces enough electricity that if you covered a football field with them, it would be enough power to run an Olympic swimming pool full of hard drives. The additional electricity these cell provide compared to the previous record holder would allow you to copy several libraries-of-congress per second faster to your pool full of drives.

    Hope this helps.

  9. Re:sounds toxic by CaptainPatent · · Score: 2, Funny

    Unless you grind them up and snort them you're probably safe.

    Oh crap... You mean you're not supposed to do that!?!?

    I better call my doctor.

    --
    Well, back to rejecting software patent applications.
  10. Re:Important information missing? by Kjella · · Score: 3, Funny

    Can I have a car analogy instead?

    --
    Live today, because you never know what tomorrow brings
  11. Re:Important information missing? by UID30 · · Score: 4, Funny

    they get roughly 32 rods per hogshead. divide that by the current vegas odds of the LHC finding the higgs boson vs sucking the world into a micro black hole, and you'll realize that is one hell of a burrito for only $700b.

    Wait a minute. What was this thread about again?

    --
    "Glory is fleeting, but obscurity is forever." - Napoleon Bonaparte
  12. Re:Terducken power wafers by thehickcoder · · Score: 4, Funny

    Too bad there isn't a "-1 Incoherent" mod.

  13. Re:yaaawwwwnnn.... by chromeshadow · · Score: 2, Funny

    At least you've got The Wall to hang panels on.

  14. Re:So... by Dahamma · · Score: 5, Funny

    I don't see the problem. All we need to do is develop a cheap, efficient form of fusion to create the exotic elements we need so that we can produce these solar cells to provide a new source of cheap, efficient energy.

  15. Re:yaaawwwwnnn.... by Anonymous Coward · · Score: 2, Funny

    I know you like to Meddle, and it's true, I did have a Momentary Lapse of Reason, but I Wish You Were Here to fortify The Wall that I've built on The Dark Side of the Moon to keep out the Animals.

    TDz.

  16. Re:sounds toxic by Surt · · Score: 3, Funny

    I will personally guarantee to you that they are not cancergnous.

    --
    "Who is the Journal of Quantum Physics going to believe?" --Stephen Hawking
  17. Re:Expensive! by Yvan256 · · Score: 2, Funny

    When I flip my pancakes over in the morning, I don't think it increases their cost by much.

  18. Re:sounds toxic by Anonymous Coward · · Score: 1, Funny

    House is not a name. What's next, Doctor Building, Doctor Roof and Doctor Door?

  19. Why waste time when you can make gold by bigtrike · · Score: 3, Funny

    Why mess around with solar cells when you can use that technology to turn lead into gold. We'll have so much gold that everyone on this planet will be so rich that they won't have a need for cheap solar power.

  20. Re:sounds toxic by Spy+der+Mann · · Score: 2, Funny

    House is not a name. What's next, Doctor Building, Doctor Roof and Doctor Door?

    ...and there's the proof that those chemicals in your blood are dangerous to your health. Any questions?
    - Greg House.