We are developing flexible and lightweight III-V multijunction solar cells for space applications fulfilling different power density requirements. High efficiency designs such as the 3J inverted metamorphic can achieve power densities of 3 kW/kg. Lower cost designs based on GaInP/Ga(In)As/Ge 3J lattice matched solar cells can achieve 1 kW/kg and are interesting for some space applications. In this paper we present the advances in the modelling, manufacturing and characterization of this last type of solar cell. Experimental results show that 3J solar cells thinned down to 50 μm exhibit the same efficiency as the non-thinned solar cell (150 μm) despite there is no passivation of the rear side, in agreement with our simulations.
We are developing flexible and lightweight III-V multijunction solar cells for space applications fulfilling different power density requirements. High efficiency designs such as the 3J inverted metamorphic can achieve power densities of 3 kW/kg. Lower cost designs based on GaInP/Ga(In)As/Ge 3J lattice matched solar cells can achieve 1 kW/kg and are interesting for some space applications. In this paper we present the advances in the modelling, manufacturing and characterization of this last type of solar cell. Experimental results show that 3J solar cells thinned down to 50 μm exhibit the same efficiency as the non-thinned solar cell (150 μm) despite there is no passivation of the rear side, in agreement with our simulations. Read More
Related posts:
Advances in Flexible and Lightweight III-V Multijunction Solar Cells for High Power Densities
Advances in Flexible and Lightweight III-V Multijunction Solar Cells for High Power Density Applications
Manufacturing process for III-V multijunction solar cells on germanium substrates with a total thickness below 60 microns
GreenH2CM. Fuel cell-based hybrid powertrain research and testing laboratory for maritime and aeronautical environments
Concentrator systems as mission enablers for deep space missions: a review of state of the art and a new European endeavor
High Temperature Accelerated Life Tests for GaInP/GaAs/Ge Solar Cells: Forward Versus Forward-Reverse Bias