File:ShockleyQueisserBreakdown2 (DE).svg
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DescriptionShockleyQueisserBreakdown2 (DE).svg |
English: The Shockley-Queisser limit for the maximum possible efficiency of a solar cell (black), and the inevitable losses that limit it (other colors). The black height is energy that can be extracted as useful electrical power; the pink height is energy of below-bandgap photons; the green height is energy lost when hot photogenerated electrons and holes relax to the band edges; the blue height is energy lost in the tradeoff between low radiative recombination versus high operating voltage. The curves are all wiggly because of IR absorption bands in the atmosphere: I used the actual AM1.5G solar spectrum data. I cross-checked the black curve with independently-calculated ones and they agree to high accuracy, see blelow. The other curves besides the black curve are not published in exactly this form to my knowledge, but it's a straightforward part of the same calculation.
Deutsch: Die Shockley-Queisser-Grenze (schwarz) für den maximal möglichen Wirkungsgrad einer Solarzelle und weitere unvermeidliche Verluste (andere Farben), die den Wirkungsgrad begrenzen. Der schwarze Bereich kennzeichnet den für die Energieumwandlung nutzbaren Bereich, der rosafarbene Bereich die Photenen mit einer Energie unterhalb der Bandabstandsenergie, der grüne Bereich Energieverluste durch heiße photogenerierten Elektronen und Löcher die an den Bandkanten relaxieren und der blaue Bereich Energieverluste die durch den notwendigen Kompromiss zwischen niedrig strahlenden Rekombinationen und einer hohen Betriebsspannung entstehen. Die (schwarze) Kurve ist etwas wacklig aufgrund von Einflüssen durch IR-Absorptionsbanden in der Atmosphäre, hierbei wurden die tatsächlichen Daten AM1.5G-Sonnenspektrum genutzt. Manchmal wird dieses Spektrum durch ein 6000-K-Schwarzkörperspektrum angenähert. In diesem Fall erhält man eine glattere Kurve mit leicht unterschiedlichen Werten. Die hier gezeigte Darstellung wurde mit unabhängigen Darstellungen aus anderen Quellen (siehe unten) verglichen und zeigen eine hohe Übereinstimmung. Die anderen Kurven wurden in dieser Form noch nicht veröffentlicht, sind aber Teil der gleichen Berechnung.
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: translation; point reduction. The original can be viewed here: ShockleyQueisserBreakdown2.svg: . Modifications made by Cepheiden.
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This image is a derivative work of the following images:
- File:ShockleyQueisserBreakdown2.svg licensed with Cc-zero
- 2011-02-17T23:11:13Z Sbyrnes321 969x720 (108258 Bytes) {{Information |Description ={{en|1=The Shockley-Queisser limit for the maximum possible efficiency of a solar cell (black), and the inevitable losses that limit it (other colors). The black height is energy that can be ext
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:09, 11 December 2011 | 969 × 720 (26 KB) | Cepheiden (talk | contribs) | correction | |
11:05, 11 December 2011 | 969 × 720 (26 KB) | Cepheiden (talk | contribs) | y-axis | ||
11:02, 11 December 2011 | 969 × 720 (26 KB) | Cepheiden (talk | contribs) | fices | ||
10:57, 11 December 2011 | 969 × 720 (27 KB) | Cepheiden (talk | contribs) | == {{int:filedesc}} == {{Information |Description={{en|1=The Shockley-Queisser limit for the maximum possible efficiency of a solar cell (black), and the inevitable losses that limit it (other colors). The black height is energy that can be extracted as u |
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