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| Keywords: ShockleyQueisserZoomedIn.svg en The Shockley-Queisser limit for the maximum possible efficiency of a solar cell The x-axis is the bandgap of the solar cell the y-axis is the highest possible efficiency ratio of electrical power output to light power input Assumes a single-junction solar cell under unconcentrated light and some other assumptions too The curve is wiggly because of IR absorption bands in the atmosphere I used the actual AM1 5G solar spectrum data Sometimes people approximate the solar spectrum by a 6000K blackbody spectrum instead and they get a smoother curve with slightly different values I cross-checked my curve with an 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 own Sbyrnes321 2011-02-08 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/ Photovoltaic power schemas and diagrams Solar cell schemas and diagrams | ||||
