The Solar Cells Laboratory of the Calibration and Test Center (CalTeC) at the Institute for Solar Energy Research (ISFH) is now on the list of “designated test centres” that confirm solar cell efficiency world-records for the “Solar cell efficiency tables”. These efficiency tables are one of the most important references for the technological development of solar cells.
The Solar Cells Laboratory of the Calibration and Test Center (CalTeC) at the Institute for Solar Energy Research (ISFH) has been added to the list of “designated test centres” that confirm solar cell efficiency world records for the “Solar cell efficiency tables”.
The efficiency tables published in the international journal “Progress in Photovoltaics” (Wiley) list the currently highest independently confirmed efficiencies for solar cells and modules every six months.
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 Brunswick, 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.
Dr. Roland Goslich | idw - Informationsdienst Wissenschaft
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