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The extrapolation of high altitude solar cell i(v) characteristics to am0
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Snyder, David B. Blankenship, Kurt Demers Sr., James Scheiman, David A. Jenkins, Phillip P. Reinke, William |
| Copyright Year | 2007 |
| Description | The high altitude aircraft method has been used at NASA GRC since the early 1960's to calibrate solar cell short circuit current, ISC, to Air Mass Zero (AMO). This method extrapolates ISC to AM0 via the Langley plot method, a logarithmic extrapolation to 0 air mass, and includes corrections for the varying Earth-Sun distance to 1.0 AU and compensating for the non-uniform ozone distribution in the atmosphere. However, other characteristics of the solar cell I(V) curve do not extrapolate in the same way. Another approach is needed to extrapolate VOC and the maximum power point (PMAX) to AM0 illumination. As part of the high altitude aircraft method, VOC and PMAX can be obtained as ISC changes during the flight. These values can then the extrapolated, sometimes interpolated, to the ISC(AM0) value. This approach should be valid as long as the shape of the solar spectra in the stratosphere does not change too much from AMO. As a feasibility check, the results are compared to AMO I(V) curves obtained using the NASA GRC X25 based multi-source simulator. This paper investigates the approach on both multi-junction solar cells and sub-cells. |
| File Size | 439464 |
| Page Count | 9 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20090022307 |
| Archival Resource Key | ark:/13960/t12p03g1k |
| Language | English |
| Publisher Date | 2007-02-01 |
| Access Restriction | Open |
| Subject Keyword | Solar Cells Extrapolation High Altitude Altitude Simulation Calibrating Stratosphere Ozone Air Masses Feasibility Shapes Nonuniformity Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
