File:ShockleyQueisserFullCurve.svg
Summary
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 independently-calculated ones and they agree to high accuracy, <a rel="nofollow" class="external autonumber" href="http://www.opticsinfobase.org/abstract.cfm?URI=OSE-2010-SWA1">[1]</a> <a rel="nofollow" class="external autonumber" href="http://www.opticsinfobase.org/abstract.cfm?URI=OSE-2010-SWC4">[2]</a>.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:24, 4 January 2017 | | 969 × 720 (17 KB) | 127.0.0.1 (talk) | 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 independently-calculated ones and they agree to high accuracy, <a rel="nofollow" class="external autonumber" href="http://www.opticsinfobase.org/abstract.cfm?URI=OSE-2010-SWA1">[1]</a> <a rel="nofollow" class="external autonumber" href="http://www.opticsinfobase.org/abstract.cfm?URI=OSE-2010-SWC4">[2]</a>. |
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