Abstract
The impact of laterally non-uniform carrier lifetime on the determination of the emitter saturation current(Joe) from photoconductance-based measurements, based on the self-consistent method proposed by Trupke and Bardos, is investigated using a model assuming two adjacent regions with considerably difference Joe. It is shown that the method can result in an underestimation of the mean Joe if the distribution of the J oe across the sensed area is not uniform. From simulation it is verified that the error can be eliminated through independent measurement of the sample optical properties. The self-consistent calibration mechanism is also studied by the model. Experimental measurements confirm the model predictions.
Original language | English |
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Pages (from-to) | 114-123 |
Number of pages | 10 |
Journal | Energy Procedia |
Volume | 38 |
DOIs | |
Publication status | Published - 2013 |
Event | 3rd International Conference on Crystalline Silicon Photovoltaics, SiliconPV 2013 - Hamelin, Germany Duration: 25 Mar 2013 → 27 Mar 2013 |