DESIGN AND REALIZATION OF A NEXT GENERATION HIGH ACCURACY PRIMARY CALIBRATION FACILITY FOR SOLAR CELLS AT PTB

S. Winter, T. Fey, I. Kröger, D. Friedrich, K. Ladner, B. Ortel, S. Pendsa, D. Schlüssel

Abstract

A completely newly designed multifunctional flexible facility for the primary calibration of reference solar cells and the spectral characterization of all solar cell types has been developed and built at PTB. The new facility is based on the successfully applied Differential Spectral Responsivity (DSR) method that allows the determination of the absolute spectral responsivity and nonlinearity of solar cells with the lowest uncertainties. By using a tunable laser system, the new setup avoids the main problem of monochromator-based systems: the low optical power level of the monochromatic beam. Thus it enables a significant reduction of the uncertainty for the short circuit current under standard test conditions ISTC of large solar cells.

Keywords

traceability, calibration, tunable laser, spectral responsivity, solar cells

Download

IMEKO-WC-2012-TC20-O6.pdf

DOI

-

IMEKO TC

TC20 - Measurements of Energy and Related Quantities

Back to the proceedings