1989 Volume 22 Pages 35-42
A description is given of outdoor calibrations of reference solar cells carried out at Kisarazu National College of Technology and a result of the comparison with indoor calibrations at Japan Machinery and Metals Inspection Institute. About three hundred sets of measurements have been performed from March 9 to may 18, 1998. Calibrated cells consist of crystalline Si, polycrystalline Si, amorphous Si, CdS-CdTe and GaAs cells. The cells placed on a plane surface tilted 37 degrees to the horizontal enabled the calibration using a pyrheliometer as it is originally defined by IEC, along with two other methods of calibration ; one utilizing a standard lamp of spectral irradiance (an application of the Japanese method of indoor calibration to outdoor calibration) and the other utilizing the same standard lamp and also an illuminometer (a modified version of the former method). The results obtained in this report are as follows : (1) each method of calibration gave quite accurate efficiencies of the cells, (2) the comparison showed a very good agreement between outdoor and indoor calibrations except CdS-CdTe and GaAs cells.
