Abstract
This study compares the on-sun performance of a set of GaInP2/GaAs tandem cells with different GaInP2 top-cell thicknesses. Because high-efficiency III-V cells are best suited to concentrating photovoltaic (CPV) applications, the cells were mounted on a two-axis tracker with the incident sunlight collimated to exclude all except the direct beam. Current-voltage (I-V) curves were taken throughoutthe course of several days, along with the direct solar spectrum. Our two major conclusions are: (1) GaInP2/GaAs tandem cells designed for an 'air mass 1.5 global' (AM 1.5G) or a 'low aerosol optical depth' (Low AOD) spectrum perform the best, and (2) a simple device model using the measured direct spectra as an input gives the same result. These results are equally valid for GaInP2/GaAs/Getriple-junction cells.
| Original language | American English |
|---|---|
| Number of pages | 5 |
| State | Published - 2005 |
| Event | 2004 DOE Solar Energy Technologies Program Review Meeting - Denver, Colorado Duration: 25 Oct 2004 → 28 Oct 2004 |
Conference
| Conference | 2004 DOE Solar Energy Technologies Program Review Meeting |
|---|---|
| City | Denver, Colorado |
| Period | 25/10/04 → 28/10/04 |
Bibliographical note
Presented at the 2004 DOE Solar Energy Technologies Program Review Meeting, 25-28 October 2004, Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102005-2067; NREL/CD-520-37140)NREL Publication Number
- NREL/CP-520-37022
Keywords
- air mass 1.5 global
- current-voltage (I-V)
- device model
- high-efficiency III-V
- low aerosol optical depth (AOD)
- on-site solar power
- PV
- solar cells
- tandem cells
- top-cell thickness
- triple-junction
- two-axis tracker
