Dr. Karsten Bothe
Tel.: +49(0)5151-999 425
The “Solar cell efficiency tables” are one of the most important references for the technological development of solar cells. The 51st edition, published on December 14, 2017, lists seven so-called “designated test centres”, including ISFH-CalTeC. These test centres have the required measuring accuracy and international comparability for the determination of solar cell efficiency world records.
The inclusion of the ISFH-CalTeC Solar Cells Laboratory in the list of recognized test centres follows the successful accreditation for the calibration of solar cells according to DIN EN ISO/IEC 17025 by the German Accreditation Body (DAkkS) in 2016. The accreditation covers the measurement of the spectral responsivity (SR) and the determination of the characteristic solar cell parameters (Isc, Voc, FF and η) of the current-voltage curve (IV-curve) of solar cells under standard test conditions as defined in the IEC60904 standards.
By default, all parameters are specified with their accompanied uncertainty. For traceability to SI units, references that are regularly calibrated at the Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig, the national metrology institute in Germany, are used for all measurements. The calibration service of the ISFH CalTeC focuses on the measurement of wafer-based silicon solar cells from laboratory scale up to industrial formats.
51st issue of the Solar Cell Efficiency Tables: http://onlinelibrary.wiley.com/doi/10.1002/pip.2978/epdf
Accreditation of ISFH-CalTeC for the calibration of solar cells under registration number D-K-18657-01-00: https://www.dakks.de/as/ast/d/D-K-18657-01-00.pdf