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Small Business Innovation Research/Small Business Tech Transfer

Flexible ELO Solar Cells with Ultra-High Specific Power and Areal Power Density, Phase I

Completed Technology Project

Project Introduction

In the proposed effort, MicroLink Devices develop an ultra-lightweight, high-efficiency, GaAs-based, multi-junction solar cell that will be suitable for use in future platforms requiring very high specific power (>2.0 kW/kg) and very high areal power density (>370 W/m2) such as power generation and conversion for robotic science mission applications, and in particular solar electric propulsion (SEP). In addition to drastically reduced mass the highly flexible nature of our ELO solar cells would allow for novel compact lightweight array designs that take full advantage of the unique properties of ELO solar cells. We will achieve this result by reducing the metal content of MicroLink's current inverted metamorphic (IMM), epitaxial lift-off (ELO) solar cell and replacing the metal with robust, low-density, space qualified Kapton® that will retain the flexibility and durability of ELO solar cell at a fraction of its present weight. More »

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