| Autor: |
Yang Li, Tining Su, G. DeMaggio, Jeff Yang, J. Zhang, Subhendu Guha, X. Xu, C. Worrel, Arindam Banerjee, K. Beernink, Guozhen Yue, Baojie Yan, David C. Bobela, Kenneth Lord, G. Pietka, D. Beglau, S. Ehlert |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
2009 34th IEEE Photovoltaic Specialists Conference (PVSC). |
| DOI: |
10.1109/pvsc.2009.5411410 |
| Popis: |
We fabricated five different types of a-SiGe∶H and nc-Si∶H based multi-junction solar cell structures using modified Very High Frequency (MVHF) technology. After optimization, all five structures reached similar initial cell performance, i.e. ∼12% small active-area (0.25 cm2) efficiency and 10.6–10.8% large aperture-area (≥ 400 cm2) efficiency after encapsulation. However, they showed quite different light soaking stability behavior, which can be attributed to the degradation of component cells. We conducted a comparative study between the MVHF deposited solar cells with those deposited by RF. Materials studies were also conducted to understand the mechanism responsible for better stability for the MVHF deposited a-SiGe∶H solar cells. The best stable efficiency achieved for the large-area encapsulated cells is approaching 10% for both a-SiGe∶H and nc-Si∶H based multi-junction cells. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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