Very High Specific Power ELO Solar Cells (>3 kW/kg) for UAV, Space, and Portable Power Applications

Abstract

MicroLink Devices has developed triple-junction (3J) GaInP/GaAs/GaInAs epitaxial lift-off (ELO) 20 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> solar cells achieving >3 kW/kg specific power and >30% AM0 (>34% AM1.5G) 1-Sun power conversion efficiency. These cells were manufactured using volume mass-production tools and processes. Preliminary reliability testing of bare cells and laminated arrays showed no appreciable degradation.