Title:	Recent Progress of Solar Cell Development for CPV Applications at AZUR SPACE
Author(s):	R.H. van Leest, D. Fuhrmann, A. Frey, M. Meusel, S.K. Reichmuth, M. Steiner, G. Siefer
Keywords:	System Performance, Multi-Junction Solar Cell, Concentrator Cells, III-V Semiconductors
Topic:	Perovskites, other Non-Silicon-Based Photovoltaics and Multi-Junction Devices
Subtopic:	III-V and Related Compound Semiconductor Based Devices
Event:	36th European Photovoltaic Solar Energy Conference and Exhibition
Session:	3CP.1.3
Pages:	586 - 589
ISBN:	3-936338-60-4
Paper DOI:	10.4229/EUPVSEC20192019-3CP.1.3
Price:	0,00 EUR
Document(s):	paper

Abstract/Summary:

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The next generation concentrator photovoltaic (CPV) product of AZUR SPACE will be a five-junction upright metamorphic (5J-UMM) cell with a target efficiency of 46% under concentrator standard testing conditions (CSTC: AM1.5d, 25°C). Additionally the cell design has been optimized for operating conditions (operation temperatures up to 90°C). Over the course of four iterations of 5J-UMM cells the current performance could be increased to 42.7% at 768 Suns. This cell is still significantly current mismatched. For a properly current matched cell with further improvements efficiencies up to 46% are expected. Additionally cells were implemented in AZUR SPACE’s Enhanced Fresnel Assemblies (EFAs) and C3PV Modules. The EFAs show similar results for both triple (3J) and quintuple (5J) cells. The module, however, shows 11% enhanced output power when equipped with 5J cells.