Title :
Calibration of III-V Concentrator Cells and Modules
Author :
Siefer, G. ; Bett, A.W.
Author_Institution :
Fraunhofer-Inst. for Solar Energy Syst., Freiburg
Abstract :
The paper reviews the calibration procedure for III-V multi-junction concentrator cells used at Fraunhofer ISE. This includes the measurement of the spectral response and the technique of spectrometric characterization under one-sun intensity level. The high light intensity calibration is performed using a flash simulator. It is discussed how the spectrum of the flash simulator influences the determined efficiency versus concentration ratio. Concentrator modules are measured outdoors. Taking a FLATCONreg test module with a maximum efficiency of 26.8 % as example, the distribution of measured outdoor efficiencies is discussed. Finally, it is shown how the temperature of the cells in the module can be derived using the indoor cell measurements
Keywords :
solar cells; solar energy concentrators; Fraunhofer ISE; III-V multijunction concentrator cells; concentrator modules; flash simulator; light intensity calibration; solar cells; spectrometric technique; Calibration; Circuit simulation; III-V semiconductor materials; Photovoltaic cells; Short circuit currents; Solar energy; Spectroscopy; Stability; Temperature; Testing;
Conference_Titel :
Photovoltaic Energy Conversion, Conference Record of the 2006 IEEE 4th World Conference on
Conference_Location :
Waikoloa, HI
Print_ISBN :
1-4244-0017-1
Electronic_ISBN :
1-4244-0017-1
DOI :
10.1109/WCPEC.2006.279563
