Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1512657 | Energy Procedia | 2013 | 10 Pages |
Abstract
This paper demonstrates that the electronic properties of a multicrystalline solar ingot can be used to predict the performance of solar cells manufactured from it. The lifetime and trap density are measured on as-cut bricks and are used to define a single metrological parameter termed “Q-Factor”. The Q-Factor scales with the performance of over a dozen ingots cast from experimental Solar-Grade Silicon. It has the unit of a lifetime and relates to the minority carrier lifetime at cell level. It is argued that the measurement of electronic properties of Silicon at brick level is a sensitive probe for contaminations and can be considered as complementary to a chemical analysis. It can predict the performance potential of the brick with the added advantage of being sensitive to the crystallization quality.
Related Topics
Physical Sciences and Engineering
Energy
Energy (General)
Authors
Fabien Gibaja, Til Bartel, Matthias Heuer, Oliver Graf, Martin Kaes, Fritz Kirscht,