Suns‐PLI as a powerful tool for spatially resolved fill factor analysis of solar cells
Authors:
- 25 October 2012
- journal article
- research article
- Published by Wiley in Progress in Photovoltaics: Research and Applications
- Vol. 22 (5) , 581-586
Abstract
We show the benefits of spatially resolved pseudo fill factor analysis on multicrystalline silicon solar cells. Hereby, we present a method based on quasi‐steady‐state photoluminescence‐calibrated photoluminescence images at varying generation rate. We verify the method by a comparison with global and local Suns‐Voc measurements and apply Suns‐PLI to multicrystalline heterojunction samples with and without conductive top layer, the latter being not accessible by Suns‐Voc. Thereby, we obtain detailed insight into the influence of injection‐dependent local recombination on fill factor and of losses only due to recombination‐driven lateral balancing currents. The conclusions are supported by Spice network simulations. Copyright © 2012 John Wiley & Sons, Ltd.Keywords
This publication has 9 references indexed in Scilit:
- Efficiency limiting bulk recombination in multicrystalline silicon solar cellsSolar Energy Materials and Solar Cells, 2012
- Effect of incomplete ionization for the description of highly aluminum-doped siliconJournal of Applied Physics, 2011
- Minority carrier lifetime of silicon solar cells from quasi-steady-state photoluminescenceSolar Energy Materials and Solar Cells, 2011
- Minority carrier lifetime imaging of silicon wafers calibrated by quasi-steady-state photoluminescenceSolar Energy Materials and Solar Cells, 2011
- Appearance of rift structures created by acidic texturization and their impact on solar cell efficiency2010
- Luminescence imaging for the detection of shunts on silicon solar cellsProgress in Photovoltaics: Research and Applications, 2008
- Suns-photoluminescence: Contactless determination of current-voltage characteristics of silicon wafersApplied Physics Letters, 2005
- Averaging of laterally inhomogeneous lifetimes for one-dimensional modeling of solar cellsJournal of Applied Physics, 2003
- Effects of sheet resistance and contact shading on the characterization of solar cells by open-circuit voltage measurementsJournal of Applied Physics, 2003