Min Wu, Qin Liu, Min Qian, Shun Wang, Lijie Sun, Yang Yang
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Fabrication and Experimental Investigation of Flexible Thin Film Solar Module with Ultra-high Voltage for the Space Power Satellites
Light weight and flexible III-V multi-junction thin film solar cells play an important role as power energy supplying in space solar power satellites. In this work, we fabricated 3 J GaInP/GaAs/InGaAs solar cells on 30 μm thick polyimide film using temporary bonding and epitaxial layer lift-off via selective wet chemical etching. The thin film solar cells with an average conversion efficiency of 30% (AM0) were connected together in series to increase the module’s voltage up to 500 V. Increasing module’s voltage allows to reducing the resistive losses during long distance current transportation and is enable inverter simplification leading to more efficient. We investigated the influence of the electrostatic discharging on the flexible thin solar module with 500 V ultra-high voltage and the results were discussed.
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