SolCell Metrology for III-V materials based high efficiency multi junction solar cells



An LED-based sun simulator has been completed and tested. Currently, first experiments on 3j_MJSC are being performed. PTB, INTA and TUBITAK compared their measurement results from previous deliverables. The experiments were found reproducible at all partners and showed reasonable accordance.

Quantitative nanoscale measurements of dopant density on MJSC have been carried out at Keysight-Austria, METAS and LNE by using Scanning Microwave Microscopy (SMM). Reliability of the measurements has been demonstrated thanks to the GaAs dopant staircase reference structure developed by LAAS and characterized by SIMS (Secondary Ion Mass Spectrometry) at CEA-LETI.

Realisation of an e-module training on nanoscale characterization: New SMM Applications for Semiconductors & Buried Structures, 2D Materials, and Living Cells in Buffer Solution

Critical steps for the calibration of solar cells has been overcome so that the expected uncertainty of 0.5 % should be achieved at the end of the project.


NPL developed new facilities to measure contact potential differences and Scanning Spreading Resistance in air and ultra-high vacuum for III-V multifunction solar cells. These measurements can be used as input to model band structure to better understand photovoltaic transport properties.

A summary of progress in the first six months of the SolCell project can be found here



3 and 4 November 2016 – Progress meeting
The meeting was held in Cracow, Poland

26 February 2016 – Mid-term review meeting in Berlin, Germany

13 and 14 January – Mid-term meeting
The meeting was held in Toulouse, France


11 September – Kick-off Meeting
The kick-off meeting was held in Paris

The research within this EURAMET joint research project receives funding from the European Community's Seventh Framework Programme, ERA-NET Plus, under Grant Agreement No. 217257.

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