Degradation of CdTe Solar Cells: Simulation and Experiment
| العنوان: | Degradation of CdTe Solar Cells: Simulation and Experiment |
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| المؤلفون: | Marco Nardone, David S. Albin |
| المصدر: | IEEE Journal of Photovoltaics. 5:962-967 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Photoluminescence, Materials science, Doping, Analytical chemistry, chemistry.chemical_element, Type (model theory), Condensed Matter Physics, Copper, Cadmium telluride photovoltaics, Electronic, Optical and Magnetic Materials, Hysteresis, chemistry, Degradation (geology), Charge carrier, Electrical and Electronic Engineering |
| الوصف: | Time-dependent numerical modeling is employed in conjunction with experimental data to investigate degradation mechanisms in cadmium telluride (CdTe) solar cells. Two mechanisms are tested against the data: 1) defect generation in the junction region caused by excess charge carriers and reactant defects and 2) back barrier increase. Junction effects result in stable $J_{{\rm sc}}$ with significant losses in $V_{{\rm oc}}$ and FF, in accordance with typical data for the type of light-soak stress conditions considered here. The back barrier increase causes additional FF loss. The results suggest that both mid-gap recombination centers and shallow acceptor-type defects form near the main junction as degradation proceeds. Our data reaffirm that the inclusion of copper in the back contact is associated with better initial performance and more rapid degradation. Correlations were observed between degradation rates and apparent doping hysteresis obtained from bidirectional capacitance–voltage (C–V) scans. Our time-resolved photoluminescence (PL) results show no correlation between light-soak-induced $V_{{\rm oc}}$ loss and PL lifetime. |
| تدمد: | 2156-3403 2156-3381 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::8c2ba9e4d153b92957cd0ae8e3345da3Test https://doi.org/10.1109/jphotov.2015.2405763Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........8c2ba9e4d153b92957cd0ae8e3345da3 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21563403 21563381 |
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