Results 1 to 3 of 3

Thread: Gold nanoparticles boost organic solar cell efficiency

  1. #1
    Super Moderator
    Join Date
    Dec 2015
    Posts
    13

    Gold nanoparticles boost organic solar cell efficiency

    Gold nanoparticles boost organic solar cell efficiency

    Full Article @ http://www.gizmag.com/gold-nanoparti...iciency/19565/



    Carbon-based organic photovoltaic cells, which use organic polymers or small molecules as semiconductors, are significantly thinner and cheaper than their inorganic silicon-based counterparts. Unfortunately, they are also much less efficient at converting sunlight into electricity. That could be on its way to changing, however, as an international team of researchers have reportedly boosted the efficiency of organic photovoltaic cells by 20 percent ... with some help from gold nanoparticles.


    The team was led by UCLA's Prof. Yang Yang, who worked with Xing Wang Zhang from Beijing's Chinese Academy of Science, and Ziruo Hong from Japan's Yamagata University.
    In their experiments, the scientists sandwiched a layer of gold nanoparticles between two light-absorbing subcells in a tandem polymer organic solar cell. This caused what is known as a plasmonic effect, in which the particles created an electromagnetic field that served to concentrate the light, so that more of it could be absorbed by the subcells.


    "The plasmonic effect happening in the middle of the interconnecting layer can enhance both the top and bottom subcells simultaneously - a 'sweet spot' - leading to an improvement in the power conversion efficiency of the tandem solar cell from 5.22 percent to 6.24 percent" said Yang. "The enhancement ratio is as high as 20 percent."


    Of course, even 6.24 percent falls far below the overall efficiency record of over 42 percent, which was set by an inorganic solar cell. The much lower cost of organic cells needs to be taken into account, however, as does the fact that such cells could be multi-stacked for a higher combined output. Also, it would be interesting to see what would happen if the gold nanoparticles were incorporated into Konarka's Power Plastic organic cells, which already manage a record-setting 8.3 percent efficiency.

  2. #2
    Senior Member
    Join Date
    Feb 2017
    Posts
    3,568

    Ralph Wieck ue

    cetin basaran 1970s porn actresses

    We've got lots of vintage porn movies for your enjoyment. Now you won't have to guess the possible scenes of retro porn you'll see them! Maybe the quality of the video leaves much to be desired but vintage women are 100% natural and sincere when moaning and cumming. You'll be fascinated by sexual explorations of the seemingly old-fashioned ladies.

    Brezzy Lane fuck

    hairy vintage mature retro sexbombs riding stiff cock

    colleen brennan classic pornstar pics







    WATCH VINTAGE PORN HERE FOR FREE >>> http://retrosex.mobi/

    free vintage hardcore porn seventies girl pleases a cock with both her holes
    80s porn starlets double penetration euro sluts 2
    vintage hairy models fifties ladies get naked outdoor
    ebony ayes in vintage porn 1990
    porn classic pics a retro black cock sucked

  3. #3
    Senior Member
    Join Date
    Feb 2017
    Posts
    3,568

    classic hardcore porn black seventies lady fucked # 8510

    erika bella in vintage mature german porn

    Porn the way it should be, combining intrigue and sex looking the 80s way

    Natural boobs vintage hardcore

    Vincent Madrano

    Deborah Wells videos







    WATCH RETRO PORN HERE FOR FREE >>> http://vintagesex.mobi/

    misty regan famous 80s porn stars
    christy canyon classic porn pic
    natasha skyler in 90s porn clips
    amber lynn in classic porn star pic
    90s porn galleries triple ejac dans la tauliere

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •