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| Keywords: ShockleyQueisserBreakdown2.svg en 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 http //www opticsinfobase org/abstract cfm URI OSE-2010-SWA1 http //www opticsinfobase org/abstract cfm URI OSE-2010-SWC4 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 own Sbyrnes321 2011-02-17 ShockleyQueisserBreakdown2 DE svg The data-file for this graph is freely available ask me at http //en wikipedia org/wiki/User_talk Sbyrnes321 I did the calculation in Mathematica the plotting in Origin and the PDF-->SVG conversion in Inkscape The Mathematica source code is posted on my website http //sjbyrnes com/ Cc-zero Photovoltaic power schemas and diagrams Solar cell schemas and diagrams | ||||
