| Issue |
E3S Web Conf.
Volume 16, 2017
11th European Space Power Conference
|
|
|---|---|---|
| Article Number | 03009 | |
| Number of page(s) | 6 | |
| Section | Power Generation: Solar Cells | |
| DOI | https://doi.org/10.1051/e3sconf/20171603009 | |
| Published online | 23 May 2017 | |
Status of Four-Junction Cell Development at Fraunhofer ISE
1 Fraunhofer Institute for Solar Energy Systems ISE, Heidenhofstrasse 2, 79211 Freiburg (Germany)
2 AZUR SPACE Solar Power GmbH, Theresienstrasse. 2, 74072 Heilbronn, (Germany)
* Email: david.lackner@ise.fraunhofer.de
Four-junction solar cells are being developed for space applications as they promise higher efficiencies compared to the present GaInP/GaInAs/Ge triple-junction industry standard. There are multiple technological routes to achieve four-junction cells with the ideal bandgap combination of 1.9 eV, 1.4 eV 1.05 eV and 0.7 eV. This includes metamorphic growth concepts and direct semiconductor wafer bonded technology. All cell designs have their specific advantages and challenges. Therefore, at Fraunhofer ISE a plurality of different four-junction cell concepts is under investigation. The current status of the development and a discussion of so far achieved characteristics are presented in this work.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.