Wagner, Hannes; Hofstetter, Jasmin; Mitchell, Bernhard; Altermatt, Pietro P.; Buonassisi, Tonio: Device architecture and lifetime requirements for high efficiency multicrystalline silicon solar cells. In: Energy Procedia 77 (2015), S. 225-230. DOI: https://doi.org/10.1016/j.egypro.2015.07.031
Abstract: | |
We present a numerical simulation study of different multicrystalline silicon materials and solar cell architectures to understand today's efficiency limitations and future efficiency possibilities. We compare conventional full-area BSF and PERC solar cells to future cell designs with a gallium phosphide heteroemitter. For all designs, mc-Si materials with different excess carrier lifetime distributions are used as simulation input parameters to capture a broad range of materials. The results show that conventional solar cell designs are sufficient for generalized mean lifetimes between 40 90 mu s, but do not give a clear advantage in terms of efficiency for higher mean lifetime mc-Si material because they are often limited by recombination in the phosphorus diffused emitter region. Heteroemitter designs instead increase in cell efficiency considerable up to generalized mean lifetimes of 380 mu s because they are significantly less limited by recombination in the emitter and the bulk lifetime becomes more important. In conclusion, to benefit from increasing mc-Si lifetime, new cell designs, especially heteroemitter, are desirable. | |
License of this version: | CC BY-NC-ND 4.0 Unported |
Document Type: | Article |
Publishing status: | publishedVersion |
Issue Date: | 2015 |
Appears in Collections: | Fakultät für Mathematik und Physik |
pos. | country | downloads | ||
---|---|---|---|---|
total | perc. | |||
1 | ![]() |
Germany | 75 | 64.10% |
2 | ![]() |
United States | 15 | 12.82% |
3 | ![]() |
China | 11 | 9.40% |
4 | ![]() |
No geo information available | 2 | 1.71% |
5 | ![]() |
Poland | 2 | 1.71% |
6 | ![]() |
India | 2 | 1.71% |
7 | ![]() |
Ukraine | 1 | 0.85% |
8 | ![]() |
Taiwan | 1 | 0.85% |
9 | ![]() |
Malaysia | 1 | 0.85% |
10 | ![]() |
Kazakhstan | 1 | 0.85% |
other countries | 6 | 5.13% |
Hinweis
Zur Erhebung der Downloadstatistiken kommen entsprechend dem „COUNTER Code of Practice for e-Resources“ international anerkannte Regeln und Normen zur Anwendung. COUNTER ist eine internationale Non-Profit-Organisation, in der Bibliotheksverbände, Datenbankanbieter und Verlage gemeinsam an Standards zur Erhebung, Speicherung und Verarbeitung von Nutzungsdaten elektronischer Ressourcen arbeiten, welche so Objektivität und Vergleichbarkeit gewährleisten sollen. Es werden hierbei ausschließlich Zugriffe auf die entsprechenden Volltexte ausgewertet, keine Aufrufe der Website an sich.