IV measurements of mc-Si solar cells: comparison of results from institute and industry partners within the EU CrystalClear project
conference paper
different measurement set-ups used by different research partners of the EU CrystalClear project using industrialtype multicrystalline Si solar cells. In a first round robin a significant spread of all cell parameters (Voc, jsc, FF and efficiency) could be observed. After distribution of sister cells to selected cells calibrated at ISE CalLab, a second round robin was carried out. The spread in FF and jsc could be significantly reduced. Repeatability tests showed that by using a photo diode fluctuations of light intensity can be minimised and variations in jsc can be decreased down to 0.2 mA/cm2. Remaining systematic errors are control of cell temperature, contacting geometry, and use of appropriate reference cells.
TNO Identifier
821501
Publisher
ECN
Source title
23rd European Photovoltaic Solar Energy Conference and Exhibition, Valencia, Spain, 1-5 september 2008.
Collation
6 p.
Place of publication
Petten
Pages
6 p.
Files