MAKE A MEME
View Large Image
| View Original: | ShockleyQueisserBreakdown.svg (968x720) | |||
| Download: | Original | Medium | Small | Thumb |
| Courtesy of: | commons.wikimedia.org | More Like This | ||
| Keywords: ShockleyQueisserBreakdown.svg en The Shockley-Queisser limit for the maximum possible efficiency of a solar cell black and its contributing factors other curves The x-axis is the bandgap of the solar cell The red curve is the ideal efficiency if the only loss was the fact that below-gap photons are not absorbed; the blue curve is if the only loss was the relaxation of hot photogenerated electron-hole pairs down to the band edges; and the pink curve represents the other losses namely the tradeoff between higher radiative recombination and lower operating voltage If you multiply together these three curves you get the black curve 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 my total efficiency 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 2011-02-16 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 //sbyrnes321 byethost11 com/ Cc-zero Photovoltaic power schemas and diagrams Solar cell schemas and diagrams | ||||
