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| rude, thetyee, red meat, theatres, pictures, 'short story', fuckinggirls, election blog, pot shirts, bc election coverage, how i met your mother pictures, showtimes, 1999, peter cook & dudley moore, cussing, clubs, offensive, submission, flicks, | 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 just two layers. nightlife " "Two layers of indium gallium nitride, one tuned to a band gap of 1.7 eV and the other nightlife to 1.1 eV, could attain nightlife the theoretical 50 percent maximum efficiency for a two-layer multijunction cell. (Currently, no materials with these band gaps can be grown together.) Or a great many layers with only small differences in their band gaps could be stacked to approach the maximum theoretical efficiency of better than 70 percent. |
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| The dog god is finally dead and he is burning brightly in hell as cum drips down my leg. [reply] by automagically on 12/02/05 [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 election blog powered homes for a long time. Its still way election blog 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 election blog 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. |
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