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Development, cost reduction and customized design of industrial concentrator solar cells with efficiencies approaching 40% and above

: Guter, W.; Bensch, W.; Kern, R.; Köstler, W.; Meusel, M.; Strobl, G.; Riesen, S. van; Gerstmaier, T.; Gombert, A.; Dimroth, F.; Bett, A.W.

Preprint urn:nbn:de:0011-n-1563823 (856 KByte PDF)
MD5 Fingerprint: e06f504fb34008458d20d7494e92fe86
Erstellt am: 8.8.2014

Institute of Electrical and Electronics Engineers -IEEE-; IEEE Electron Devices Society:
35th IEEE Photovoltaic Specialists Conference, PVSC 2010. Vol.1 : Honolulu, Hawaii, USA, 20 - 25 June 2010
Piscataway/NJ: IEEE, 2010
ISBN: 978-1-4244-5890-5
ISBN: 978-1-4244-5891-2
ISBN: 978-1-4244-5892-9
Photovoltaic Specialists Conference (PVSC) <35, 2010, Honolulu/Hawaii>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ISE ()

Present developments of the lattice-matched In0.50Ga0.50P/In0.01Ga0.99As/Ge triple-junction solar cell incorporating a high bandgap top cell achieve average efficiencies of up to 40%. Metamorphic cell structures will further raise efficiencies above 40%. Both developments reduce the cost for CPV by increasing the performance of today's CPV systems. In order to directly decrease cell costs a lean production process with optimized MOVPE cycle time is under investigation. Due to the high amount of cells per wafer, precise cell testing with high throughput is an important issue. For highest performance on the module level, the cell design needs to be adapted to the customers' needs according to the concentrating ratio, optics used and installation site. This work summarizes recent achievements in CPV development, cost analysis and customizing.