 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
| motown, television, david steinberg, celebrity gossip, standby me, films that time forgot, funny shirts, confidential, hannibal, french/appendices/exercises, blogging, centerville, blaze, make money, swear words, environmental news, canadian film, gene lebell, blink182, pacific northwest, political cartoons, estrogen, | To do better, researchers and manufacturers stack different band gap materials in multijunction cells. Dozens of different layers could be stacked to catch photons at all energies, reaching efficiencies better than 70 percent, but too many problems intervene. When crystal lattices differ too much, for example, strain damages the crystals. The most efficient multijunction solar cell yet made -- 30 percent, out of a possible 50 percent efficiency -- has portillo just two layers. " "Two layers portillo of indium gallium nitride, one tuned to a band gap of 1.7 eV and the other to 1.1 eV, could attain the portillo theoretical 50 percent maximum efficiency for a two-layer multijunction cell. (Currently, no materials with these band gaps can be grown together.) |
Best Mature Paysites
|
| I crush what is left of your heart into the dirt. The dog god is finally dead and he is burning brightly standby me in hell as cum drips down my leg. [reply] by automagically on 12/02/05 standby me [comment buried, show commenthide comment] + 0 diggs Like someone else said, the hype and promises never seem to get here. We've all been dreaming of solar standby me powered homes for a long time. Its still way too expensive, too rare to get ahold of, and will stay that way (maybe purposely for job and economic dependency reasons) for a while. Can you imagine all the jobs lost when people stop paying for electricity, or filling their cars with gas? It might be good for nature and the environment, but would be horrible at taking care of ourselves, at least without a long transition. [reply] by digitalunltd on 12/02/05 [comment buried, show commenthide comment] + 0 diggs the meat of the article: "The maximum efficiency a solar cell made from a single material can achieve in converting light to electrical power is about 30 percent; the best efficiency actually achieved is about 25 percent. |
|
Looking for real sex? Find someone now on the
largest sex personals network.FREE signup! Post a FREE erotic ad w/5 photos, flirt in chatrooms, view explicit live Webcams, meet for REAL sex! 30,000 new photos every day! Find SEX now 
|
